2,3,5-trimethyl pyrazine
2,3,5-trimethylpyrazine
 
Notes:
Found in many foodstuffs e.g. asparagus, baked potato, wheat bread, Swiss cheese, coffee, black tea, roasted filbert and peanut, soybean etc. Flavouring ingredient
  • Advanced Biotech
  • Alfrebro
  • Augustus Oils
    • Augustus Oils Ltd
      The Premier Supplier
      Augustus Oils Ltd, in harmony with nature - to present it at its best...
      A wealth of experience, expertise and knowledge has allowed Augustus to bridge the gulf in expectation and trust between growers and users of natural ingredients. The Company works in partnership with customers on the one hand, and growers, farmers and distillers on the other. Both users and producers can then focus on exactly what they do best, while skilled Augustus technicians closely monitor and control the delivered product. This ensures users can have the confidence that they will receive the best raw materials suited to their requirements.
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      2,3,5 Trimethyl Pyrazine
       
  • Axxence Aromatic
    • Axxence Aromatic GmbH
      We bring nature to your flavour
      Dedicated to provide the best possible quality and supply service of natural aroma ingredients.
      Axxence Aromatic is entirely dedicated to provide the best possible quality and supply service of natural aroma ingredients to the Flavour & Fragrance Industry worldwide.
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      Product(s):
      324400 2,3,5-TRIMETHYL PYRAZINE Natural, Kosher
       
  • Beijing Lys Chemicals
    • Beijing Lys Chemicals Co, LTD.
      From Grams to Tons
      Fine chemical high-tech company which contains R&D, production, and sales.
      BEIJING LYS CHEMICALS CO, LTD, established in 2004, is a fine chemical high-tech company which contains R&D, production, and sales. We mainly engaged in export and technology development of flavor and fragrance materials and pharmaceutical intermediates. We have nearly 500 kinds of products, from grams to tons, exported to USA, Europe, South Asia and etc. And we custom manufacture new products according to customers’ needs, and serve good quality products and service. Our goal is to become a fine chemical enterprise which could provide special products and services.
      Email: Mr. Jia
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      Product(s):
      10033 2,3,5-Trimethylpyrazine
      20072 Natural 2,3,5-Trimethyl pyrazine
       
  • Berjé
    • Berje Inc.
      Where the world comes to its senses
      Where the world comes to its senses - Berjé is a global distributor of Essential Oils and Aromatic Chemicals.
      Berjé is a family-owned business that has been in operation for six decades. The company's origins and strength lie in a profound understanding of the supply and the quality of the diverse raw materials consumed by the flavor and fragrance industries. This base was expanded upon more than two decades ago to include fragrance production. The company's unparalleled raw material expertise is focused on the supply of essential oils and aromatic chemicals. This is supported by our long-standing relationships with a worldwide fabric of producers ensuring the greatest prospects for uninterrupted supply in markets that are often volatile and unpredictable.
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      Product(s):
      2,3,5-Trimethyl Pyrazine
      2,3,5-Trimethyl Pyrazine Natural
       
  • BOC Sciences
    • BOC Sciences
      Best of Chemicals Supplier
      Quality supplier of research chemicals and biochemicals including inhibitors, building blocks, GMP Products, impurities and metabolites, APIs for Veterinary, Natural Compounds, ADCs, Stem Cell Molecule and chiral compounds.
      BOC Sciences provides a wide range of services to support the pharmaceutical industry through all stages of drug discovery including Custom Synthesis of those chemicals that are not in stock, Isotope Labeling Service, Chiral Synthesis and Resolution, Bioconjugation, PEGylation services, analytical services.
      BOC Sciences is a brand of BOCSCI Inc. We leverage our wide spectrum of business in the fields of development, manufacturing, marketing, and distribution to help you make best-informed decisions tailored to your evolving needs for premium chemicals. Our complete suite of CRO services spans the entire molecule development pipeline including contract research for target identification, building blocks, compound synthesis, biochemical and cellular analysis, preclinical animal tests, and clinical studies.
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      Product(s):
      14667-55-1 2,3,5-Trimethylpyrazine
       
  • Charkit Chemical
    • Charkit Chemical Corporation
      The Specialty Chemical Specialists
      Explore this website to discover the products and services that Charkit provides for your industry and please contact us directly to find out how we can be of service to you.
      about: Since 1982, Charkit has been committed to expanding the markets we serve as our roster of products and services continues to grow with us. Our substantial portfolio of personal care ingredients now include a wide array of luxury and exotic components to compliment the key products we have always offered. We have expanded our offerings to the nutraceutical, industrial, and resin markets with a growing roster of versatile and unique ingredients. We continue to lead the way in our traditional markets such as Metal and Water Treatment, Imaging, Flavor & Fragrance, Aroma and Food. Our Pharmaceutical offerings continue to expand, still anchored by the Boronic Derivatives that meet the demands of Suzuki coupling reactions. Please contact us to learn how we can help you reach your goals.
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      Product(s):
      TRIMETHYLPYRAZINE NATURAL FEMA 3244
      TRIMETHYLPYRAZINE, 2,3,5- FEMA 3244
       
  • Elan Inc.
    • Elan Inc.
      Legacy of Innovation
      Highest quality natural and synthetic products.
      Elan Inc. is a privately held business that has been in operation for over 30 years. Our offices and production facility are located in Newark, NJ. We are dedicated to producing the highest quality natural and synthetic products available in the flavor and fragrance industry.
      US Email: Mr. David Pimentel
      US Email: Ms. Isabel Couto
      Email: Elan (Shanghai) Fine Chemical
      Email: Elan do Brazil
      US Voice: (973) 344-8014
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      Voice: +86 021 57448053 (Elan Shanghai)
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      Elan do Brazil:55 13 3261 6084
      Elan do Brazil Fax:55 13 3261 3726
      Custom Solutions
      Product(s):
      2,3,5-TRIMETHYL PYRAZINE Kosher
      SDS
       
  • Endeavour Specialty Chemicals
  • Excellentia International
  • FCI SAS
    • FCI SAS
      Inspired by Nature
      At FCI customer service is not a department it’s an attitude.
      Our team is composed of motivated professionals with great experience in the flavours and fragrances market. Our company has been serving this industry for more than 40 years and is ISO 9001 certified since 2009 . Whatever your question on flavour and fragrance ingredients: commercial, technical or regulatory – we will answer it very quickly.
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      Voice: +33 (0)1 34 25 58 10
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      About Us
      Product(s):
      50000 2,3,5-TRIMETHYL PYRAZINE
       
  • Firmenich
    • Firmenich Inc.
      We Create
      We create perfumes and flavors for the World's most desirable brands.
      Firmenich is the largest privately-owned company in the perfume and flavor business. Swiss and family owned, we have created many of the world’s favorite perfumes for over 100 years and produced a number of the most well known flavors we enjoy each day.
      US Email: Fred Keifer
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      Product(s):
      956348 2,3,5-TRIMETHYLPYRAZINE NAT min. 97%, Kosher

      2,3,5-TRIMETHYLPYRAZINE brings toasted notes which are excellent for grilled profile to meat flavors. Essential for chocolate, nut and coffee flavors.
       
       
  • Fleurchem
    • Fleurchem, Inc.
      Have A Flavorful Day
      A leading global manufacturer and supplier of ingredients for Flavors, Fragrances, AromaTherapy, Foods, Beverages, Personal Care Products, and other uses.
      Operating out of the 200,000 sq. ft., former Hercules/PFW facility in Middletown, NY; Fleurchem produces a full range of natural isolates, synthetic chemicals & specialities, essential oils and flavors. Additionally, the company performs toll manufacturing, as well as custom chemical synthesis for a wide range of clients.
      Email: Information
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      Product(s):
      trimethyl pyrazine natural
      2,3,5-trimethyl pyrazine
       
  • Frutarom
    • FRUTAROM USA INC,
      Flavor & Specialty Ingredients
      Your preferred partner for flavour and fragrance success.
      Our broad and diverse product portfolio is designed to provide and cater for every flavor and taste profile required by our customer base and incorporates historic, and iconic, market leading products.
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      Product(s):
      441T065000 2,3,5 TRIMETHYLPYRAZINE KOSHER
       
  • Myrazine
    • Myrazine LLC
      EU Natural Ingredients from Fermentation
      All the materials are sourced from fermentation.
      Myrazine LLC,formerly known as Cheng Smith LLC, and Abioco, started its search for Natural materials in 2000, when we started to import natural alcohols from China. China's liquor fermentation technology is as old as the country. Chinese liquor is? unique, because it is fermented from grains, such as rice, wheat, sorghum, and barleys. With bacteria or microorganism present in the fermentaiton, Chinese liquor is rich in flavours. It is reported that there are over 100 flavour materials in the liquor fermentation broth. During the production, the "good" liquor is distilled out, and the "bad" alcohols are dumped as "wastes" before 1980s. Fusel oil is regarded and dumped as the "bad" one during the production. Today, every single ton of the liquor fermentation "wastes" --- fusel oil, has been physically distilled. Alcohols from these distillations are methyl alcohol, ethanol, propanol, butanol, iso-butanol, iso-amyl alcohol, etc. Most of the alcohols are used by the flavour and fragrances industry as raw materials, which eventually go into the beverages, food, and some daily products. According to the US and EU regulations about natural ingredients, materials from fermentation are regarded as "natural".
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      Product(s):
      Pyrazine, trimethyl-
       
  • Natural Advantage
  • Odowell Co.,ltd
    • Odowell Co.,ltd
      Fulfilling Demand
      Product quality and consistency.
      Odowell is specialized in producing and distributing aroma chemicals for Flavors &Fragrances industry since 2012. Product ranges are ketones, esters,alcohols, aldehydes , ethers and lactones. We have the most comprehensive range of C3-C15 aliphatic ketones, aromatic ketones and high purity electronic chemicals, providing to many industries related to our daily life.
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      Phone, Kunshan Odowell+86-512-55380008
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      Product(s):
      20-103-065 Natural 2,3,5-trimethyl-pyrazine PURITY: ≥98%
       
  • OQEMA
    • OQEMA
      With a focus on providing the highest level of service
      OQEMA has established itself at the forefront of the global chemical industry.
      The guiding principles of OQEMA have always been to establish long term relationships with customers and suppliers alike to build sustainable and profitable business for all parties. Through OQEMA’s business divisions the company tailors products and services to better support and service our customers requirements. This structure also allows the company to focus its marketing campaigns more effectively to certain industries. Over the last decade OQEMA has achieved strong growth as a result of the expansion of our business model. Going forward, the company will be expanding this business model into existing and new strategic territories.
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      US Email: Dean Matienzo
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      Product(s):
      2,3,5-Trimethyl Pyrazine natural
       
  • Pell Wall Perfumes
    • Pell Wall Perfumes
      Hand-made fragrances
      Pell Wall maintains a broad palette of ingredients & in order to keep stocks fresh & the options wide we also sell from our own stock.
      Pell Wall was founded by perfumer Chris Bartlett to provide exclusive hand-made fragrances to a select few people who love them. All our products are created using fine quality ingredients, many of which we also offer for sale to other perfumers and enthusiasts. Pell Wall make fragrances for men, for women and for the home.
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      Product(s):
      Potato Pyrazine
      Naturally present in bread, some cheeses and chocolate as well as the potato it is named for, this is a surprisingly versatile material that is used as a component in modern cocoa flavours as well as coffee, bread and roast nuts. It can contribute all these notes to fragrance but, even more than most pyrazines it requires heavy dilution to be effective. Excellent in a gourmand when properly dosed.
       
       
  • Penta International
  • Primechem
    • Anhui Primechem Co., Ltd.
      Where Scent Matters Most
      Dependable supply and professional services to exceed our client's expectations.
      For over 2 decades, Primechem has proven to be a professional and outstanding supplier, offering a diverse range of superior quality products, services and solutions for use in Flavor & Fragrances industries worldwide.
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      Product(s):
      2,3,5-Trimethylpyrazine natural
       
  • Prodasynth
    • Prodasynth
      PRODUCTEUR PAR ESSENCE
      Chemical specialist in manufacturing, distributing and sourcing of tailor-made ingredients for the Flavour & Fragrance industry.
      Today we are also proud to say, we have created an important range of Natural Molecules which can be found in our Raw Material Compendium. The versatility of our small but efficient structure is one of our main strengths when trying to fulfill our clients' requirements.
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      Voice: (33) 4 93 09 00 11
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      Product(s):
      2,3,5-TRIMETHYLPYRAZINE
       
  • Riverside Aromatics
    • Riverside Aromatics Ltd.
      Speciality Aroma Chemicals, Naturals and Synthetics
      A specialist supplier of raw materials to the flavour industry.
      Peter Cannon & David Rowe established Riverside Aromatics in 2006 in Poole, UK, to offer a new type of specialist raw material supplier to the Flavour & Fragrance Industry. We bring together over 40 years of commercial & technical experience in the F&F industry which allows us to understand the needs of the Global F&F business and especially that of the West European Market.
      Email: Info
      Email: Peter Cannon (sales)
      Voice: +44 (0) 1202 679532
      Fax: +44 (0) 1202 679532
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      Product(s):
      TP0300 2,3,5-TRIMETHYLPYRAZINE
      NP1300 2,3,5-TRIMETHYLPYRAZINE NATURAL
       
  • Robertet
  • Taytonn ASCC
    • Taytonn ASCC Pte Ltd
      Supplying Asia Pacific
      We fully understand the demands of the F&F industry and we endeavour to supply quality products, with ready availability and a personalised service.
      Since 2001 TAYTONN has been distributing key ingredients to the Fragrance and Flavor industry in Asia. We work closely with customers, principals and vendors. Together we forecast demand and match it with supply of aroma chemicals, essential oils and natural isolates & extracts. Sourced from around the world, our F&F ingredient inventory in Singapore is ready to ship to any location in Asia and beyond. Time and again, we help our principals introduce new discoveries to the F&F market - stimulating creativity and bringing value added proposition to our customers.
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      Voice: + 65 - 6861 8113
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      Product(s):
      2,3,5-Trimethylpyrazine
      Natural Trimethylpyrazine
       
  • TCI AMERICA
    • TCI AMERICA
      Moving Your Chemistry Forward
      We continuously strive to advance our technology.
      With East & West Coast distribution centers, count on TCI to deliver products quickly and reliably. Over 30,000 Reagents available today in benchtop to bulk quantities. We also offer custom synthesis solutions. Sign up for a TCI account today for fast and free shipping!
      Tokyo Chemical Industry Co., Ltd. (TCI) is a leading worldwide manufacturer of specialty organic chemicals founded in 1946. TCI provides organic laboratory chemicals as well as pharmaceutical, cosmetic and functional materials. More than 70 years of synthesis experience and multi-purpose plants enable TCI to offer more than 30,000 products as well as custom synthesis.
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      Voice: 1-800-423-8616
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      Product(s):
      T0942 2,3,5-Trimethylpyrazine >98.0%(GC)(T)
      SDS
       
  • Tianjin Danjun International
    • Tianjin Danjun International Trade Co., LTD.
      Quality Products
      We know the Chinese chemical market well.
      Tianjin danjun international trade co., LTD. is an organic chemicals trading company approved by the relevant state authorities to register. We have about 300 kinds of products (natural aroma chemicals, synthetic aroma chemicals and pharmaceutical intermediates). Most of the products are used in flavor and fragrance industry. We know the Chinese chemical market well and we have close relationship with many of the main manufacturers, and to provide our customers with quality goods together with comprehensive service.
      Email: Info
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      Voice: +86-15822601686
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      Product(s):
      B-009 2,3,5-Trimethylpyrazine
      J-009 Natural 2,3,5-Trimethylpyrazine
       
  • R C Treatt & Co Ltd
    • R C Treatt and Co Ltd
      Innovative ingredient solutions
      World-leading innovative ingredient solutions provider for the flavour, fragrance and FMCG industries.
      We offer innovative and trend-setting product concepts for our customers, collaborating with them to create true value for their products.
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      Voice: +44 (0) 1284 702500
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      Product(s):
      2,3,5-Trimethylpyrazine Halal, Kosher
      Odour threshold in water: 400 ppb
      Much used as a component in modern cocoa and chocolate flavors. Also used in coffee, bread and roast nut flavours (e.g., hazelnut, almond, peanut, etc.). Normal use levels in finished consumer product: 0.01-5 ppm. Council of Europe limits: Foods (1 ppm).
       
       
  • United International
    • Qingdao Free Trade Zone United International Co Ltd
      Quality Products
      A partner in your supply chain solution.
      Qingdao Free Trade Zone United International Trade Co., Ltd.was founded in 1996, specializing in the production and import and export of food additives,flavor raw materials and pharmaceutical and chemical raw materials. The company has experienced R&D and business personnel,product quality, low price, efficient service and fast insight and grasp the latest market information.
      Email: Info
      Email: Sales
      Voice: +86-532-83893699
      Fax: +86-532-83893695
      Product(s):
      1006 2,3,5-Trimethyl Pyrazine
      1006N 2,3,5-Trimethyl Pyrazine Nat.
       
Synonyms   Articles   Notes   Search
Fragrance Demo Formulas    Flavor Demo Formulas
CAS Number: 14667-55-1Picture of molecule3D/inchi
ECHA EINECS - REACH Pre-Reg: 238-712-0
FDA UNII: Q8PR0W8TIT
Nikkaji Web: J27.872F
Beilstein Number: 0002423
MDL: MFCD00006145
CoE Number: 735
XlogP3: 1.00 (est)
Molecular Weight: 122.17070000
Formula: C7 H10 N2
NMR Predictor: Predict (works with chrome, Edge or firefox)
EFSA/JECFA Comments: Specific gravity: depending on the quality and the producer, the SG ranges from: 0.967-0.987 (EFFA, 2010a).
Category: cosmetic, flavor and fragrance agents
 
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar: Search
Google Books: Search
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Perfumer and Flavorist: Search
Google Patents: Search
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NCBI: Search
JECFA Food Flavoring: 774  2,3,5-trimethylpyrazine
DG SANTE Food Flavourings: 14.019  2,3,5-trimethylpyrazine
FEMA Number: 3244 2,3,5-trimethylpyrazine
FDA:No longer provide for the use of these seven synthetic flavoring substances
FDA Mainterm (SATF):14667-55-1 ; 2,3,5-TRIMETHYLPYRAZINE
Synonyms   Articles   Notes   Search   Top
Physical Properties:
Appearance: colorless to pale yellow clear liquid (est)
Assay: 98.00 to 100.00 % 
Food Chemicals Codex Listed: Yes
Specific Gravity: 0.96500 to 0.98500 @  25.00 °C.
Pounds per Gallon - (est).: 8.030 to  8.196
Refractive Index: 1.49000 to 1.51000 @  20.00 °C.
Boiling Point: 171.00 to  172.00 °C. @ 760.00 mm Hg
Vapor Pressure: 1.724000 mmHg @ 25.00 °C. (est)
Vapor Density: 4.2 ( Air = 1 )
Flash Point: 130.00 °F. TCC ( 54.44 °C. )
logP (o/w): 0.950
Soluble in:
 alcohol
 oils
 water, 1.521e+004 mg/L @ 25 °C (est)
Stability:
 non-discoloring in most media
 stable in most media
Synonyms   Articles   Notes   Search   Top
Organoleptic Properties:
 
Odor Type: nutty
 
Odor Strength: high ,
recommend smelling in a 0.01 % solution or less
 
Substantivity: 21 hour(s) at 0.05 % in ethyl alcohol
 
 nutty  nut skin  earthy  powdery  cocoa  potato baked potato  peanut roasted peanut  hazelnut  musty  
Odor Description:
at 0.01 % in dipropylene glycol. 
nutty nut skin earthy powdery cocoa baked potato roasted peanut hazelnut musty
Luebke, William tgsc, (2017)
 
 nutty  musty  powdery  cocoa  potato  musty  
Odor Description:
Nutty, musty, powdery cocoa, potato and musty
Mosciano, Gerard P&F 15, No. 6, 35, (1990)
 
 
Flavor Type: musty
 
 raw  nut skin  vegetable  cocoa  toasted  earthy  chocolate  coffee  
Taste Description:
raw nut skin vegetable cocoa toasted earthy chocolate coffee
Luebke, William tgsc, (2017)
 
 raw  musty  nutty  potato  
Taste Description:
at 80.00 ppm.  
Raw, musty, nutty, potato
Mosciano, Gerard P&F 15, No. 6, 35, (1990)
 
Odor and/or flavor descriptions from others (if found).
 
R C Treatt & Co Ltd
2,3,5-Trimethylpyrazine Halal, Kosher
Odor Description: Nutty, baked potato, roasted peanut, cocoa, burnt notes
Odour threshold in water: 400 ppb
Taste Description: nutty
Much used as a component in modern cocoa and chocolate flavors. Also used in coffee, bread and roast nut flavours (e.g., hazelnut, almond, peanut, etc.). Normal use levels in finished consumer product: 0.01-5 ppm. Council of Europe limits: Foods (1 ppm).
 
Firmenich
2,3,5-TRIMETHYLPYRAZINE NAT min. 97%, Kosher
Taste Description: Powerful toasted, nutty, earthy, chocolate and coffee notes
2,3,5-TRIMETHYLPYRAZINE brings toasted notes which are excellent for grilled profile to meat flavors. Essential for chocolate, nut and coffee flavors.
 
Pell Wall Perfumes
Potato Pyrazine
Odor Description: chocolate, hazelnut, baked-potato, musty, natural, nutty, roasted
Naturally present in bread, some cheeses and chocolate as well as the potato it is named for, this is a surprisingly versatile material that is used as a component in modern cocoa flavours as well as coffee, bread and roast nuts. It can contribute all these notes to fragrance but, even more than most pyrazines it requires heavy dilution to be effective. Excellent in a gourmand when properly dosed.
 
Perfumery Laboratory
Trimethyl pyrazine 10
Odor Description: The strong aroma of roasted hazelnuts and peanuts, baked potatoes with hints of cocoa beans
 
FCI SAS
2,3,5-TRIMETHYL PYRAZINE
Odor Description: Roast, peanut, filbert, cocoa
 
 
Synonyms   Articles   Notes   Search   Top
Cosmetic Information:
CosIng: cosmetic data
Cosmetic Uses: perfuming agents
Synonyms   Articles   Notes   Search   Top
Suppliers:
Advanced Biotech
2 3 5 TRIMETHYL PYRAZINE HP NATURAL
Odor: Potato, Roasted Peanut
Advanced Biotech
2,3,5 TRI METHYL PYRAZINE
Advanced Biotech
2,3,5 TRIMETHYL PYRAZINE NATURAL
95% min. (mixed isomers)
Odor: Baked-Potato, Peanut Butter, Roasted
Alfrebro
2,3,5-TRIMETHYL PYRAZINE NATURAL 98%
Alfrebro
2,3,5-TRIMETHYL PYRAZINE NATURAL
Odor: Baked Potato, Peanut
Alfrebro
2,3,5-TRIMETHYL PYRAZINE
Odor: Roasted Nuts, Cocoa, Baked Potato
Ambles Nature et Chimie
2.3.5 TRIMETHYL NAT
Anhui Haibei
2,3,5-Trimethyl Pyrazine natural
Odor: Nutty musty earthy powdery cocoa roasted peanut
Anhui Haibei
2,3,5-Trimethyl Pyrazine
Odor: Nutty musty earthy powdery cocoa roasted peanut
Anhui Suzhou Jinli Aromatic Chemicals
2,3,5-Trimethyl Pyrazine
Odor: roast, peanut, hazelnut, cocoa
Aromiens International
2,3,5-Trimethyl Pyrazine, Natural
Artiste
2,3,5-Trimethyl Pyrazine Natural
Entire library of synthetic pyrazines is available.
Astral Extracts
Trimethylpyrazine
Augustus Oils
2,3,5 Trimethyl Pyrazine
Services
Aurochemicals
2,3,5-TRIMETHYL PYRAZINE, Natural
Axxence Aromatic
2,3,5-TRIMETHYL PYRAZINE Natural, Kosher
Sustainability
Beijing Lys Chemicals
2,3,5-Trimethylpyrazine
Beijing Lys Chemicals
Natural 2,3,5-Trimethyl pyrazine
Berjé
2,3,5-Trimethyl Pyrazine Natural
Media
Berjé
2,3,5-Trimethyl Pyrazine
BOC Sciences
For experimental / research use only.
2,3,5-Trimethylpyrazine
Charkit Chemical
TRIMETHYLPYRAZINE NATURAL FEMA 3244
Charkit Chemical
TRIMETHYLPYRAZINE, 2,3,5- FEMA 3244
Citrus and Allied Essences
2,3,5-Trimethyl Pyrazine FCC
Odor: reminiscent of baked potato or roasted peanut
Market Report
De Monchy Aromatics
2,3,5-Trimethylpyrazine
DeLong Chemicals America
2,3,5-Trimethylpyrazine, Kosher
Diffusions Aromatiques
2,3,5-Trimethyl Pyrazine
Elan Inc.
2,3,5-TRIMETHYL PYRAZINE
Kosher
Endeavour Specialty Chemicals
2,3,5-Trimethylpyrazine 99% F&F
Speciality Chemical Product Groups
Endeavour Specialty Chemicals
Cocoa pyrazine base (10% in PG)
Endeavour Specialty Chemicals
Cocoa pyrazine base, neat
Ernesto Ventós
2,3,5-TRIMETHYLPYRAZINE, NATURAL
Ernesto Ventós
2,3,5-TRIMETHYLPYRAZINE
Odor: BAKED PATATOE OR ROASTED PEANUT
Excellentia International
2,3,5-Trimethyl Pyrazine (Pyrazine Mix. # 10, 12, 14, 16, 18, 22, 26) Natural
FCI SAS
2,3,5-TRIMETHYL PYRAZINE
Odor: Roast, peanut, filbert, cocoa
Firmenich
2,3,5-TRIMETHYLPYRAZINE NAT
min. 97%, Kosher
Flavor: Powerful toasted, nutty, earthy, chocolate and coffee notes
2,3,5-TRIMETHYLPYRAZINE brings toasted notes which are excellent for grilled profile to meat flavors. Essential for chocolate, nut and coffee flavors.
Fleurchem
2,3,5-trimethyl pyrazine
Fleurchem
trimethyl pyrazine natural
Frutarom
2,3,5 TRIMETHYLPYRAZINE
KOSHER
Flavor: Cocoa, Earthy, Musty, Nutty
CBD Offering
IFF
2,3,5 TRIMETHYLPYRAZINE
KOSHER
Flavor: Cocoa, Earthy, Musty, Nutty
Indukern F&F
2,3,5-TRIMETHYL PYRAZINE
Odor: NUTTY, POTATO, PEANUT, CACAO
Jiangyin Healthway
2,3,5-Trimethyl Pyrazine
New functional food ingredients
Jinan Enlighten Chemical Technology(Wutong Aroma )
2,3,5-Trimethyl pyrazine, Kosherk
Kingchem Laboratories
2, 3, 5 TRIMETHYL PYRAZINE
Odor: Roast, peanut, filbert, cocoa
Lluch Essence
PYRAZINE 2,3,5-TRIMETHYL NATURAL
Lluch Essence
PYRAZINE 2,3,5-TRIMETHYL
M&U International
2,3,5-TRIMETHYL PYRAZINE, Kosher
M&U International
NAT.2,3,5-TRIMETHYL PYRAZINE
Moellhausen
2,3,5-TRIMETHYL PYRAZINE
Odor: roasted hazel-nut, peanuts, potato
Myrazine
Pyrazine, trimethyl-
Odor: nutty musty earthy powdery cocoa roasted peanut
Natural Advantage
Trimethyl Pyrazines Nat
Flavor: baked, burnt, cocoa, nutty, potato, roasted
Riverside Aromatics LTD.is the exclusive distributor for Europe in UK for any non-US based inquiries
Odowell Co.,ltd
Natural 2,3,5-trimethyl-pyrazine
PURITY: ≥98%
Omega Ingredients
2,3,5-Trimethyl Pyrazine Natural >98%
OQEMA
2,3,5-Trimethyl Pyrazine natural
Pearlchem Corporation
2,3,5-Trimethyl Pyrazine
Pell Wall Perfumes
Potato Pyrazine
Odor: chocolate, hazelnut, baked-potato, musty, natural, nutty, roasted
Use: Naturally present in bread, some cheeses and chocolate as well as the potato it is named for, this is a surprisingly versatile material that is used as a component in modern cocoa flavours as well as coffee, bread and roast nuts. It can contribute all these notes to fragrance but, even more than most pyrazines it requires heavy dilution to be effective. Excellent in a gourmand when properly dosed.
Penta International
2,3,5-TRIMETHYL PYRAZINE FCC
Penta International
2,3,5-TRIMETHYL PYRAZINE NATURAL
Penta International
2,3,5-TRIMETHYL PYRAZINE
Perfumery Laboratory
Trimethyl pyrazine 10
Odor: The strong aroma of roasted hazelnuts and peanuts, baked potatoes with hints of cocoa beans
Phoenix Aromas & Essential Oils
Pyrazine, 2,3,5- Trimethyl
Phoenix Aromas & Essential Oils
Pyrazine, 2,3,5-Trimethyl Natural
Primechem
2,3,5-Trimethylpyrazine natural
Prodasynth
2,3,5-TRIMETHYLPYRAZINE
Odor: BAKED POTATO OR ROASTED PEANUT
R C Treatt & Co Ltd
2,3,5-Trimethylpyrazine
Halal, Kosher
Odor: Nutty, baked potato, roasted peanut, cocoa, burnt notes
Use: Odour threshold in water: 400 ppb
Flavor: nutty
Much used as a component in modern cocoa and chocolate flavors. Also used in coffee, bread and roast nut flavours (e.g., hazelnut, almond, peanut, etc.). Normal use levels in finished consumer product: 0.01-5 ppm. Council of Europe limits: Foods (1 ppm).
Reincke & Fichtner
2,3,5-Trimethyl Pyrazine natural
Reincke & Fichtner
2,3,5-Trimethyl Pyrazine
Riverside Aromatics
2,3,5-TRIMETHYLPYRAZINE NATURAL
Riverside Aromatics
2,3,5-TRIMETHYLPYRAZINE
Robertet
PYRAZINE TMPK (2,3,5 TRIMETHYLPYRAZINES) PURE
Pure & Nat (EU)
Seasons and Harvest / Crop calendar
Robinson Brothers
2,3,5-Trimethylpyrazine F&F
https://www.robinsonbrothers.uk/chemistry-competences
Robinson Brothers
Cocoa pyrazine base (10% in PG)
Robinson Brothers
Cocoa pyrazine base, neat
Santa Cruz Biotechnology
For experimental / research use only.
2,3,5-Trimethylpyrazine
Sigma-Aldrich
2,3,5-Trimethylpyrazine, ≥99%, FCC, FG
Odor: chocolate; hazelnut
Certified Food Grade Products
Sigma-Aldrich
2,3,5-Trimethylpyrazine, natural, ≥95%, FG
SRS Aromatics
TRIMETHYL PYRAZINE
Sunaux International
2,3,5-Trimethyl Pyrazine
Synerzine
*2,3,5-TRIMETHYL PYRAZINE
Synerzine
2,3,5-TRIMETHYL PYRAZINE MIXTURE, NATURAL, 95%
Synerzine
2,3,5-TRIMETHYL PYRAZINE NATURAL, 1% IN ETHANOL
Synerzine
2,3,5-TRIMETHYLPYRAZINE MIXTURE (NATURAL)
Synerzine
2,3,5-Trimethylpyrazine
Synerzine
natural Trimethylpyrazine
Taytonn ASCC
2,3,5-Trimethylpyrazine
Odor: Cocoa, Earthy, Musty, Nutty
Taytonn ASCC
Natural Trimethylpyrazine
Odor: Caramellic/ Caramel, Cocoa, Earthy, Myrrh, Nutty
TCI AMERICA
For experimental / research use only.
2,3,5-Trimethylpyrazine >98.0%(GC)(T)
Tengzhou Jitian Aroma Chemiclal
2,3,5-Trimethyl Pyrazine
Tengzhou Xiang Yuan Aroma Chemicals
2,3,5-Trimethyl Pyrazine
The Perfumers Apprentice
Trimethyl Pyrazine 10% (PG)
Odor: nutty musty earthy powdery cocoa roasted peanut
Tianjin Danjun International
2,3,5-Trimethylpyrazine
Tianjin Danjun International
Natural 2,3,5-Trimethylpyrazine
United International
2,3,5-Trimethyl Pyrazine Nat.
United International
2,3,5-Trimethyl Pyrazine
Vigon International
Trimethyl 2,3,5 Pyrazine Natural
Vigon International
Trimethyl-2,3,5 Pyrazine
WEN International
TRIMETHYL PYRAZINE Natural
WholeChem
2,3,5-Trimethylpyrazine, Natural
WholeChem
2.3.5-Trimethyl pyrazine
Synonyms   Articles   Notes   Search   Top
Safety Information:
Preferred SDS: View
European information :
Most important hazard(s):
Xn - Harmful.
R 10 - Flammable.
R 22 - Harmful if swallowed.
R 36/37/38 - Irritating to eyes, respiratory system, and skin.
S 02 - Keep out of the reach of children.
S 16 - Keep away from sources of ignition - No Smoking.
S 20/21 - When using do not eat, drink or smoke.
S 24/25 - Avoid contact with skin and eyes.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 37/39 - Wear suitable gloves and eye/face protection.
 
Hazards identification
 
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
 
Pictogram
 
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
gavage-rat LD50  806 mg/kg
(Moran et al., 1980)

oral-rat LD50  806 mg/kg
Drug and Chemical Toxicology. Vol. 3, Pg. 249, 1980.

Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
Synonyms   Articles   Notes   Search   Top
Safety in Use Information:
Category: cosmetic, flavor and fragrance agents
RIFM Fragrance Material Safety Assessment: Search
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
Recommendation for 2,3,5-trimethyl pyrazine usage levels up to:
  0.1000 % in the fragrance concentrate.
 
Maximised Survey-derived Daily Intakes (MSDI-EU): 100.00 (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA): 46.00 (μg/capita/day)
Structure Class: II
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS).
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library
publication number: 4
Click here to view publication 4
 average usual ppmaverage maximum ppm
baked goods: 5.0000010.00000
beverages(nonalcoholic): 5.0000010.00000
beverages(alcoholic): --
breakfast cereal: -2.00000
cheese: --
chewing gum: --
condiments / relishes: -2.00000
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: --
fruit ices: --
gelatins / puddings: --
granulated sugar: --
gravies: -2.00000
hard candy: 5.0000010.00000
imitation dairy: --
instant coffee / tea: --
jams / jellies: --
meat products: -2.00000
milk products: -1.00000
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: --
snack foods: --
soft candy: --
soups: -2.00000
sugar substitutes: --
sweet sauces: --
Synonyms   Articles   Notes   Search   Top
Safety References:
Flavor & Extract Manufacturers Association (FEMA) reference(s):
The FEMA GRAS assessment of pyrazine derivatives used as flavor ingredients. View pdf
European Food Safety Athority(EFSA): Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...
European Food Safety Authority (EFSA) reference(s):
Opinion of the Scientific Panel on food additives, flavourings, processing aids and materials in contact with food (AFC) on a request from the Commission related to Flavouring Group Evaluation 17 (FGE.17): Pyrazine derivatives from chemical group 24 (Commission Regulation (EC) No 1565/2000 of 18 July 2000)
View page or View pdf
Flavouring Group Evaluation 50 (FGE.50): Consideration of pyrazine derivatives evaluated by JECFA (57th meeting) structurally related to pyrazine derivatives evaluated by EFSA in FGE.17 (2005) (Commission Regulation (EC) No 1565/2000 of 18 July 2000) - Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC)
View page or View pdf
Flavouring Group Evaluation 17, Revision 1 (FGE.17Rev1): Pyrazine derivatives from chemical group 24 - Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC) [1]
View page or View pdf
Scientific Opinion on Flavouring Group Evaluation 17, Revision 2 (FGE.17Rev2): Pyrazine derivatives from chemical group 24
View page or View pdf
Scientific Opinion on Flavouring Group Evaluation 50, Revision 1 (FGE.50Rev1): Consideration of pyrazine derivatives evaluated by JECFA (57th meeting) structurally related to pyrazine derivatives evaluated by EFSA in FGE.17Rev2 (2010)
View page or View pdf
Safety and efficacy of pyrazine derivatives including saturated ones belonging to chemical group 24 when used as flavourings for all animal species
View page or View pdf
EPI System: View
Chemical Carcinogenesis Research Information System: Search
AIDS Citations: Search
Cancer Citations: Search
Toxicology Citations: Search
EPA Substance Registry Services (TSCA): 14667-55-1
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 26808
National Institute of Allergy and Infectious Diseases: Data
WISER: UN 1993
WGK Germany: 3
 2,3,5-trimethylpyrazine
Chemidplus: 0014667551
RTECS: UQ3907000 for cas# 14667-55-1
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References:
 2,3,5-trimethylpyrazine
NIST Chemistry WebBook: Search Inchi
Canada Domestic Sub. List: 14667-55-1
Pubchem (cid): 26808
Pubchem (sid): 134989811
Flavornet: 14667-55-1
Pherobase: View
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Other Information:
(IUPAC): Atomic Weights of the Elements 2011 (pdf)
Videos: The Periodic Table of Videos
tgsc: Atomic Weights use for this web site
(IUPAC): Periodic Table of the Elements
FDA Substances Added to Food (formerly EAFUS): View
CHEMBL: View
HMDB (The Human Metabolome Database): HMDB31844
FooDB: FDB008527
YMDB (Yeast Metabolome Database): YMDB01442
Export Tariff Code: 2933.99.9700
Typical G.C.
VCF-Online: VCF Volatile Compounds in Food
ChemSpider: View
Synonyms   Articles   Notes   Search   Top
Potential Blenders and core components note
 
For Odor
No odor group found for these
 sulfuryl octanoateFL/FR
 sulfuryl butyrateFL/FR
 sulfuryl decanoateFL/FR
 sulfuryl hexanoateFL/FR
 sulfuryl isobutyrateFL/FR
 sulfuryl propionateFL/FR
acidic
 cyclohexyl acetic acidFL/FR
chocolate
 chocolate specialtyFR
 cocoa hexenalFL/FR
 cocoa oleoresinFL/FR
 cocoa pentenalFL/FR
2,5-dimethyl pyrazineFL/FR
corn chip
 popcorn pyrimidineFL/FR
earthy
2-ethyl-3-methoxypyrazineFL/FR
 nutty pyrazineFL/FR
floral
 cyclamen aldehydeFL/FR
fruity
 benzyl isovalerateFL/FR
green
2-isobutyl thiazoleFL/FR
2-heptyl furanFL/FR
medicinal
 quinolineCS
musty
2-acetyl pyrroleFL/FR
3-acetyl-2,5-dimethyl furanFL/FR
 cocoa butenalFL/FR
 hazelnut pyrazineFL/FR
 menthofuranFL/FR
nutty
3-acetyl pyridineFL/FR
2-acetyl-3-ethyl pyrazineFL/FR
2-acetyl-3-methyl pyrazineFL/FR
2-acetyl-3,5(or 6)-dimethyl pyrazineFL/FR
2-acetyl-5-methyl furanFL/FR
3,6-cocoa pyrazineFL/FR
3,5-cocoa pyrazineFL/FR
4,5-dimethyl-2-ethyl-3-thiazolineFL/FR
2-ethyl pyrazineFL/FR
 filbert heptenoneFL/FR
 filbert pyrazineFL/FR
5-methyl quinoxalineFL/FR
2-methyl thio-3,5 or 6-methyl pyrazineFL/FR
 nutty cyclohexenoneFL/FR
 nutty quinoxalineFL/FR
 shoyu pyrazineFL/FR
2,3,5,6-tetramethyl pyrazineFL/FR
2,4,5-trimethyl oxazoleFL/FR
 vinyl sulfurolFL/FR
popcorn
2-acetyl pyrazineFL/FR
2-acetyl pyridineFL/FR
2-acetyl thiazoleFL/FR
roasted
2-acetyl-2-pyrroline 
sulfurous
 furfuryl thioacetateFL/FR
 methionalFL/FR
woody
4-hydroxybenzaldehydeFL/FR
 
For Flavor
 
No flavor group found for these
 acetyl acetaldehyde dimethyl acetalFL
2-acetyl-2-pyrroline 
2-acetyl-5-methyl pyrazineFL
2-acetyl-6-methyl pyrazineFL
(E)-aconitic acidFL
 cyclohexyl methyl pyrazineFL
2,5-diethyl thiazoleFL
6,7-dihydro-2,3-dimethyl-5H-cyclopentapyrazineFL
 dimethyl dihydrocyclopentapyrazineFL
2,5-dimethyl thiazoleFL
 ethyl dimethyl pyrazineFL
2-ethyl-3-methoxypyrazineFL/FR
 green pea pyrazineFL
2-methoxy-3-propyl pyrazineFL
 methyl 2-(methyl thio) acetateFL
 methyl octyl sulfideFL
4-(methyl thio) butanolFL
2-propionyl pyrroleFL
 sulfuryl butyrateFL/FR
 sulfuryl decanoateFL/FR
 sulfuryl hexanoateFL/FR
 sulfuryl isobutyrateFL/FR
 sulfuryl formateFL
 sulfuryl octanoateFL/FR
 sulfuryl propionateFL/FR
alliaceous
3-mercapto-2-pentanoneFL
2-methyl thioacetaldehydeFL
bready
2-propionyl thiazoleFL
burnt
2,4,5-trimethyl oxazoleFL/FR
chocolate
 cocoa oleoresinFL/FR
cocoa
 cocoa hexenalFL/FR
corn
2-acetyl pyridineFL/FR
2-acetyl thiazoleFL/FR
 popcorn pyrimidineFL/FR
creamy
4-hydroxybenzaldehydeFL/FR
fatty
2-heptyl furanFL/FR
fishy
4,5-dimethyl thiazoleFL
floral
 cocoa pentenalFL/FR
fruity
 benzyl isovalerateFL/FR
green
2-isobutyl thiazoleFL/FR
 cocoa butenalFL/FR
 cyclamen aldehydeFL/FR
 propylene glycol acetone ketalFL
milky
dextro,laevo-3-(methyl thio) butanoneFL
musty
2,5-dimethyl pyrazineFL/FR
2-ethoxythiazoleFL
 hazelnut pyrazineFL/FR
 menthofuranFL/FR
 shoyu pyrazineFL/FR
nutty
3-acetyl pyridineFL/FR
2-acetyl pyrroleFL/FR
3-acetyl-2,5-dimethyl furanFL/FR
2-acetyl-3-ethyl pyrazineFL/FR
2-acetyl-3-methyl pyrazineFL/FR
2-acetyl-3,5(or 6)-dimethyl pyrazineFL/FR
2-acetyl-5-methyl furanFL/FR
3,6-cocoa pyrazineFL/FR
3,5-cocoa pyrazineFL/FR
3,5(6)-cocoa pyrazineFL
4,5-dimethyl-2-ethyl-3-thiazolineFL/FR
2-ethyl pyrazineFL/FR
2-ethyl-6-methyl pyrazineFL
 filbert heptenoneFL/FR
 filbert pyrazineFL/FR
5-methyl quinoxalineFL/FR
2-methyl thio-3,5 or 6-methyl pyrazineFL/FR
 nutty cyclohexenoneFL/FR
 nutty pyrazineFL/FR
 nutty quinoxalineFL/FR
 nutty thiazoleFL
 peanut oxazoleFL
2,3,5,6-tetramethyl pyrazineFL/FR
 vinyl sulfurolFL/FR
popcorn
2-propionyl-2-thiazolineFL
roasted
2-acetyl pyrazineFL/FR
 furfuryl thioacetateFL/FR
sulfurous
 potato butanoneFL
sweet
 cyclohexyl acetic acidFL/FR
tomato
 methionalFL/FR
vegetable
 potato butyraldehydeFL
winey
5-ethyl-2-methyl pyridineFL
 
Synonyms   Articles   Notes   Search   Top
Potential Uses:
 caramelFL
 chocolate cocoaFL
 coffeeFL
 cornFL
 nutFL
 peanutFL
 popcornFL
 potatoFL
 potato chipFL
 shellfishFL
 sugarFL
Synonyms   Articles   Notes   Search   Top
Occurrence (nature, food, other): note
 almond roasted almond
Search Trop  Picture
 barley roasted barley
Search Trop  Picture
 beef
Search  PMC Picture
 bread wheat bread
Search  PMC Picture
 cheese emmental cheese
Search  PMC Picture
 cocoa
Search Trop  Picture
 coconut endosperm
Search Trop  Picture
 coffee
Search  PMC Picture
 corn seed
Search Trop  Picture
 dairy products
Search  PMC Picture
 filbert roasted filbert
Search Trop  Picture
 kohlrabi stem
Search Trop  Picture
 lavender oil spike spain @ 0.062%
Data  GC  Search Trop  Picture
 licorice
Search Trop  Picture
 maize
Search  PMC Picture
 meat
Search  PMC Picture
 nuts
 peanut
Search Trop  Picture
 pepper bell pepper fruit
Search Trop  Picture
 popcorn
Search  PMC Picture
 potato chip
Search  PMC Picture
 rum
Search  PMC Picture
 shrimp
Search  PMC Picture
 soy products
Search  PMC Picture
 tea leaf
Search Trop  Picture
 tobacco burley tobacco
Search  Picture
 whiskey
Search  Picture
Synonyms   Articles   Notes   Search   Top
Synonyms:
 cocoa pyrazine base
 potato pyrazine
 pyrazine TMPK (2,3,5 trimethylpyrazines) pure
 pyrazine, 2,3,5- trimethyl
 pyrazine, 2,3,5-trimethyl natural
 pyrazine, 2,3,5-trimethyl-
2,3,5-tri methyl pyrazine
 trimethyl 2,3,5 pyrazine natural
2, 3, 5 trimethyl pyrazine
2,3,5-trimethyl pyrazine
2,3,5-trimethyl pyrazine FCC
 trimethyl pyrazine natural
2,3,5-trimethyl pyrazine natural
2,3,5-trimethyl pyrazine, kosher
2,3,5-trimethyl-1,4-diazine
 trimethyl-2,3,5 pyrazine
 trimethylpyrazine
2,3,5-trimethylpyrazine
2,3,5-trimethylpyrazine nat
2,3,5-trimethylpyrazine natural
2,3,5-trimethylpyrazine, natural
Synonyms   Articles   Notes   Search   Top
Articles:
US Patents: 3,931,166 - Certain 2,5-dimethyl-3-thiopyrazines
PubMed: Development of a novel method for hot-pressure extraction of protein from chicken bone and the effect of enzymatic hydrolysis on the extracts.
PubMed: Characterization of the key aroma compounds in beef extract using aroma extract dilution analysis.
PubMed: Determination of the alkylpyrazine composition of coffee using stable isotope dilution-gas chromatography-mass spectrometry (SIDA-GC-MS).
PubMed: Characterization of cocoa liquors by GC-MS and LC-MS/MS: focus on alkylpyrazines and flavanols.
PubMed: Characterization of aroma compounds of chinese "Wuliangye" and "Jiannanchun" liquors by aroma extract dilution analysis.
PubMed: Aroma compounds in sweet whey powder.
PubMed: Identification of aroma compounds in Parmigiano-Reggiano cheese by gas chromatography/olfactometry.
PubMed: Characterization of the key aroma compounds in beef extract using aroma extract dilution analysis.
PubMed: Determination of the alkylpyrazine composition of coffee using stable isotope dilution-gas chromatography-mass spectrometry (SIDA-GC-MS).
PubMed: Characterization of cocoa liquors by GC-MS and LC-MS/MS: focus on alkylpyrazines and flavanols.
PubMed: Short communication: Evidence for methylglyoxal-mediated browning of Parmesan cheese during low temperature storage.
PubMed: Alkylpyrazines and other volatiles in cocoa liquors at pH 5 to 8, by Selected Ion Flow Tube-Mass Spectrometry (SIFT-MS).
PubMed: Application of supercritical CO(2) extraction for the elimination of odorant volatile compounds from winemaking inactive dry yeast preparation.
PubMed: Selectivity and efficiency of different reversed-phase and mixed-mode sorbents to preconcentrate and isolate aroma molecules.
PubMed: Syntheses, structures, and photoluminescence of a series of silver(I) sulfonates with pyrazine derivatives.
PubMed: Identification of chemicals emitted by calling males of the Sapote fruit fly, Anastrepha serpentina.
PubMed: Influence of epicatechin reactions on the mechanisms of Maillard product formation in low moisture model systems.
PubMed: Solitary foraging in the ancestral South American ant, Pogonomyrmex vermiculatus. Is it due to constraints in the production or perception of trail pheromones?
PubMed: Degradation of 2,5-dimethylpyrazine by Rhodococcus erythropolis strain DP-45 isolated from a waste gas treatment plant of a fishmeal processing company.
PubMed: Characterization of aroma compounds of chinese "Wuliangye" and "Jiannanchun" liquors by aroma extract dilution analysis.
PubMed: Degradation of 2,3-diethyl-5-methylpyrazine by a newly discovered bacterium, Mycobacterium sp. strain DM-11.
PubMed: Identification of components responsible for the odor of cigar smoker's breath.
PubMed: Determination of the 2H/1H and 15N/14N ratios of Alkylpyrazines from coffee beans (Coffea arabica L. and Coffea canephoravar. robusta) by isotope ratio mass spectrometry.
PubMed: Aroma compounds in sweet whey powder.
PubMed: Pyrazine derivatives in cigarette smoke inhibit hamster oviductal functioning.
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