2-butyl-3-methyl pyrazine
pyrazine, 2-butyl-3-methyl-
 
Notes:
None found
  • 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.
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      10603 2-Butyl-3-methylpyrazine
       
  • BOC Sciences
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      15987-00-5 2-Butyl-3-methylpyrazine
       
  • Penta International
    • Penta International Corporation
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      For over 30 years, Penta Manufacturing Company has played a growing role in worldwide chemistry innovations and applications. As an industry leader, Penta continues to pioneer chemistry-based solutions for practically every area of commerce. Our products and expertise have helped fuel technical advances in dozens of commercial applications including flavoring, coloring, fragrances and chemical processes.
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      Product(s):
      02-65830 2-BUTYL-3-METHYL PYRAZINE
       
  • Synerzine
    • Synerzine, Inc.
      Innovation. Customization. Aroma Ingredients.
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      Synerzine expresses what we have grown to embody as an organization - the synergy and connection between raw ingredients, science, technology, and the final product. Our experienced team is passionate about bringing our customers high-quality innovative ingredients that they can trust.
      Building upon our 44 year history, the Synerzine team provides customers around the globe with convenient access to over 1200 high-quality aroma ingredients. We actively engage with customers to add a wide array of new products and services on a regular basis. Our aim is to delight every customer with our exceptional services, large product selection, customization and the highest quality and safety standards. We provide our customers with true value designed to help them bring their products to market faster.
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      925 2-Butyl-3-Methylpyrazine
       
  • TCI AMERICA
    • TCI AMERICA
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      B1173 2-Butyl-3-methylpyrazine >97.0%(GC)
       
  • WholeChem
    • WholeChem, LLC
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      2-Butyl-3-methylpyrazine
       
Synonyms   Articles   Notes   Search
CAS Number: 15987-00-5Picture of molecule3D/inchi
ECHA EINECS - REACH Pre-Reg: 240-126-5
FDA UNII: SLG6RBP4ZT
Nikkaji Web: J208.107E
MDL: MFCD00038031
XlogP3: 2.10 (est)
Molecular Weight: 150.22458000
Formula: C9 H14 N2
NMR Predictor: Predict (works with chrome or firefox)
Category: flavoring agents
 
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar: Search
Google Books: Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Perfumer and Flavorist: Search
Google Patents: Search
US Patents: Search
EU Patents: Search
Pubchem Patents: Search
PubMed: Search
NCBI: Search
DG SANTE Food Flavourings: 14.091  2-butyl-3-methylpyrazine
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Physical Properties:
Assay: 95.00 to 100.00 % 
Food Chemicals Codex Listed: No
Melting Point: 100.00 °C. @ 760.00 mm Hg
Boiling Point: 212.00 to  214.00 °C. @ 760.00 mm Hg (est)
Vapor Pressure: 0.059000 mmHg (est)
Flash Point: 181.00 °F. TCC ( 83.00 °C. ) (est)
logP (o/w): 2.100
Soluble in:
 alcohol
 water, 1218 mg/L @ 25 °C (est)
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Organoleptic Properties:
 
Odor Type: licorice
 
 anise  licorice  
Odor Description:
at 0.10 % in propylene glycol. 
anise licorice
 
 
Flavor Type: licorice
 
 anise  licorice  
Taste Description:
anise-like, licorice
 
Odor and/or flavor descriptions from others (if found).
 
 
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Cosmetic Information:
None found
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Suppliers:
Beijing Lys Chemicals
2-Butyl-3-methylpyrazine
BOC Sciences
For experimental / research use only.
2-Butyl-3-methylpyrazine
Jinan Enlighten Chemical Technology(Wutong Aroma )
2-Butyl-3-methyl pyrazine
Penta International
2-BUTYL-3-METHYL PYRAZINE
Synerzine
2-Butyl-3-Methylpyrazine
TCI AMERICA
For experimental / research use only.
2-Butyl-3-methylpyrazine >97.0%(GC)
WholeChem
2-Butyl-3-methylpyrazine
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Safety Information:
Preferred SDS: View
 
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:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
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Safety in Use Information:
Category: flavoring agents
Recommendation for 2-butyl-3-methyl pyrazine usage levels up to:
 not for fragrance use.
 
Maximised Survey-derived Daily Intakes (MSDI-EU): 0.12 (μg/capita/day)
Modified Theoretical Added Maximum Daily Intake (mTAMDI): 270 (μg/person/day)
Threshold of Concern:540 (μg/person/day)
Structure Class: II
 
Food categories according to Commission Regulation EC No. 1565/2000 (EC, 2000) in FGE.06 (EFSA, 2002a). According to the Industry the "normal" use is defined as the average of reported usages and "maximum use" is defined as the 95th percentile of reported usages (EFSA, 2002i).
Note: mg/kg = 0.001/1000 = 0.000001 = 1/1000000 = ppm.
 average usage mg/kgmaximum usage mg/kg
Dairy products, excluding products of category 02.0 (01.0): 0.400002.00000
Fats and oils, and fat emulsions (type water-in-oil) (02.0): 0.100000.50000
Edible ices, including sherbet and sorbet (03.0): 0.400002.00000
Processed fruit (04.1): 0.400002.00000
Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): --
Confectionery (05.0): 1.000005.00000
Chewing gum (05.0): --
Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): 0.200001.00000
Bakery wares (07.0): 1.000005.00000
Meat and meat products, including poultry and game (08.0): 0.100000.40000
Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0): 0.100000.40000
Eggs and egg products (10.0): --
Sweeteners, including honey (11.0): --
Salts, spices, soups, sauces, salads, protein products, etc. (12.0): 0.100000.50000
Foodstuffs intended for particular nutritional uses (13.0): 0.200001.00000
Non-alcoholic ("soft") beverages, excl. dairy products (14.1): 0.200001.00000
Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): 1.000005.00000
Ready-to-eat savouries (15.0): 1.000005.00000
Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0): 0.200001.00000
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Safety References:
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
Scientific Opinion on Flavouring Group Evaluation 17, Revision 3 (FGE.17Rev3): Pyrazine derivatives from chemical group 24
View page or View pdf
EPI System: View
AIDS Citations: Search
Cancer Citations: Search
Toxicology Citations: Search
EPA Substance Registry Services (TSCA): 15987-00-5
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 85228
National Institute of Allergy and Infectious Diseases: Data
 2-butyl-3-methylpyrazine
Chemidplus: 0015987005
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References:
 2-butyl-3-methylpyrazine
NIST Chemistry WebBook: Search Inchi
Canada Domestic Sub. List: 15987-00-5
Pubchem (cid): 85228
Pubchem (sid): 135044527
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
HMDB (The Human Metabolome Database): Search
Export Tariff Code: 2933.99.9700
VCF-Online: VCF Volatile Compounds in Food
ChemSpider: View
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Potential Blenders and core components note
 
For Odor
No odor group found for these
meta-anisaldehydeFL/FR
acidic
 cyclohexyl acetic acidFL/FR
 methyl furfuryl disulfideFL/FR
anise
 anise oleoresinFL/FR
 anise seed oilFL/FR
star anise seed oil chinaFL/FR
 anise seed oil colombiaFL/FR
star anise seed oil spainFL/FR
star anise seed oil terpenelessFL/FR
sweet fennel absoluteFL/FR
sweet fennel oleoresinFL/FR
anisic
ortho-acetanisoleFL/FR
para-acetanisoleFL/FR
 amyl furoateFL/FR
para-anisyl phenyl acetateFL/FR
 dihydroanetholFL/FR
 estragoleFL/FR
 ethyl para-anisateFL/FR
 ocimum basilicum herb oil egyptFL/FR
 ocimum basilicum leaf oil CO2 extractFL/FR
balsamic
2-acetyl furanFL/FR
isoamyl cinnamateFL/FR
 amyl cinnamateFL/FR
 amyl phenyl acetateFL/FR
 butyl cinnamateFL/FR
 guaiacyl phenyl acetateFL/FR
 caramel furanone solutionFL/FR
 caramel pentadioneFL/FR
 coffee dioneFL/FR
 cycloteneFL/FR
 fenugreek absoluteFL/FR
 fenugreek oleoresinFL/FR
5-methyl furfuralFL/FR
chocolate
isoamyl phenyl acetateFL/FR
isobutyl phenyl acetateFL/FR
 chocolate pyrazine AFL/FR
 cocoa hexenalFL/FR
 cocoa oleoresinFL/FR
 cocoa pentenalFL/FR
2,6-dimethyl pyrazineFL/FR
2,5-dimethyl pyrazineFL/FR
2-methoxy-3-methyl pyrazineFL/FR
2-methoxypyrazineFL/FR
 tetrahydrofurfuryl phenyl acetateFL/FR
2,4,5-trimethyl thiazoleFL/FR
cocoa
2-isobutyl-3,5-(and 3,6)-dimethyl pyrazineFL/FR
 cocoa absoluteFL/FR
2-methyl butyraldehydeFL/FR
 theobroma cacao extractFL/FR
coffee
 cichorium intybus root extractFL/FR
 cichorium intybus root solid extractFL/FR
 coffea arabica seed extractFL/FR
roasted arabica coffee bean oilFL/FR
roasted arabica coffee bean oil CO2 extractFL/FR
 coffee difuranFL/FR
 furfuryl mercaptanFL/FR
1-hydroxy-2-butanoneFL/FR
2-methyl-3-,5 or 6-(furfuryl thio) pyrazineFL/FR
coumarinic
 phthalideFL/FR
 nutty pyrazineFL/FR
isopropyl formateFL/FR
fermented
3-methyl-1-pentanolFL/FR
 valeraldehydeFL/FR
floral
para-anisyl butyrateFL/FR
 benzyl phenyl acetateFL/FR
 ethyl phenyl acetateFL/FR
 lilac pentanolFL/FR
ortho-methyl acetophenoneFL/FR
 orris rhizome resinoid (iris pallida)FL/FR
 phenethyl phenyl acetateFL/FR
fruity
 allyl phenoxyacetateFL/FR
para-anisyl methyl ketoneFL/FR
isobutyl 2-butenoateFL/FR
 butyl 2-methyl butyrateFL/FR
 cherry oxyacetateFL/FR
(E,E)-ethyl sorbateFL/FR
 hexanal propylene glycol acetalFL/FR
 tropical thiazoleFL/FR
 neryl butyrateFL/FR
 phenyl acetaldehydeFL/FR
 tiglaldehydeFL/FR
herbal
 thymyl methyl etherFL/FR
gamma-valerolactoneFL/FR
 wormwood oil americaFL/FR
 wormwood oil cubaFL/FR
 wormwood oil italyFL/FR
 wormwood oil polandFL/FR
licorice
(E)-anetholFL/FR
 glycyrrhiza glabra root extractFL/FR
minty
 carvoneFL/FR
 ethyl salicylateFL/FR
musk
omega-pentadecalactoneFL/FR
musty
2-acetyl pyrroleFL/FR
3-acetyl-2,5-dimethyl furanFL/FR
 cocoa butenalFL/FR
 hazelnut pyrazineFL/FR
 menthofuranFL/FR
nutty
2-acetyl-3-ethyl pyrazineFL/FR
2-acetyl-5-methyl furanFL/FR
3,6-cocoa pyrazineFL/FR
3,5-cocoa pyrazineFL/FR
2,3-dimethyl pyrazineFL/FR
4,5-dimethyl-2-ethyl-3-thiazolineFL/FR
2-ethyl pyrazineFL/FR
2-ethyl-4-methyl thiazoleFL/FR
 filbert heptenoneFL/FR
2,6-lutidineFL/FR
2-methyl pyrazineFL/FR
5-methyl quinoxalineFL/FR
2-methyl thio-3,5 or 6-methyl pyrazineFL/FR
2-methyl-3-(methyl thio) pyrazineFL/FR
2,3,5,6-tetramethyl pyrazineFL/FR
2,3,5-trimethyl pyrazineFL/FR
 vinyl sulfurolFL/FR
phenolic
para-alpha-dimethyl styreneFL/FR
popcorn
2-acetyl pyrazineFL/FR
powdery
para-anisyl acetateFL/FR
para-anisyl alcoholFL/FR
roasted
 fenugreek resinoidFL/FR
spicy
homoanisaldehydeFL/FR
para-anisyl formateFL/FR
 artemisia dracunculus herb oilFL/FR
sulfurous
 benzothiazoleFL/FR
 furfuryl thioacetateFL/FR
S-furfuryl thioformateFL/FR
2-methyl 5-(methyl thio) furanFL/FR
vanilla
 propenyl guaetholFL/FR
vegetable
1-furfuryl pyrroleFL/FR
 tetrahydrofurfuryl alcoholFL/FR
waxy
 phenethyl octanoateFL/FR
woody
 juniper berry oleoresinFL/FR
 
For Flavor
 
No flavor group found for these
 amyl furoateFL/FR
 amyl phenyl acetateFL/FR
meta-anisaldehydeFL/FR
homoanisaldehydeFL/FR
 butyl cinnamateFL/FR
2-isobutyl-3,5-(and 3,6)-dimethyl pyrazineFL/FR
2(4)-isobutyl-4(2),6-dimethyl dihydro-4H-1,3,5-dithiazineFL
 carvoneFL/FR
 chocolate pyrazine AFL/FR
 chocolate pyrazine BFL
4,5-dimethyl-2-ethyl thiazoleFL
2,5-dimethyl-3-thiofuroyl furanFL
4-ethyl anisoleFL
 fleabane oil (erigeron canadensis)FL
2-methoxypyrazineFL/FR
2-methyl-3-,5 or 6-(furfuryl thio) pyrazineFL/FR
2-methyl-3-(methyl thio) pyrazineFL/FR
2-methyl-3-furyl tetrasulfideFL
 peanut dithiazineFL
 pyrazines mixtureFL
 tetrahydrofurfuryl phenyl acetateFL/FR
alliaceous
 benzyl mercaptanFL
 dicyclohexyl disulfideFL
 tropical thiazoleFL/FR
anise
(E)-anetholFL/FR
 anise oleoresinFL/FR
 anise seed oilFL/FR
star anise seed oil chinaFL/FR
 anise seed oil colombiaFL/FR
star anise seed oil spainFL/FR
star anise seed oil terpenelessFL/FR
 ethyl para-anisateFL/FR
sweet fennel absoluteFL/FR
sweet fennel oleoresinFL/FR
anisic
para-acetanisoleFL/FR
para-anisyl butyrateFL/FR
para-anisyl phenyl acetateFL/FR
ortho-methyl acetophenoneFL/FR
 ocimum basilicum herb oil egyptFL/FR
balsamic
 amyl cinnamateFL/FR
bitter
 methyl ethoxypyrazineFL
 paullinia cupana seed extractFL
brown
 fenugreek oleoresinFL/FR
1-hydroxy-2-butanoneFL/FR
5-methyl furfuralFL/FR
burnt
 furfuryl alcoholFL
2-methyl quinoxalineFL
 tea pyrroleFL
caramellic
 caramel furanoneFL
 caramel furanone solutionFL/FR
 caramel pentadioneFL/FR
 cycloteneFL/FR
 fenugreek absoluteFL/FR
 fenugreek resinoidFL/FR
chocolate
 cocoa oleoresinFL/FR
 cocoa propanalFL
cocoa
isobutyl phenyl acetateFL/FR
 butyraldehydeFL
 cocoa absoluteFL/FR
 cocoa hexenalFL/FR
 theobroma cacao extractFL/FR
coffee
 cichorium intybus root extractFL/FR
 cichorium intybus root solid extractFL/FR
 coffea arabica seed extractFL/FR
roasted arabica coffee bean oil CO2 extractFL/FR
 coffee difuranFL/FR
 coffee dioneFL/FR
 coffee distillatesFL
 coffee enhancersFL
 coffee pyrazineFL
 difurfuryl etherFL
 diisoamyl thiomalateFL
2,4-dimethyl thiazoleFL
2-ethyl-4-methyl thiazoleFL/FR
 furfuryl mercaptanFL/FR
 methyl furfuryl disulfideFL/FR
 methyl furfuryl thiolFL
2-methyl-5-vinyl pyrazineFL
2-thiophene thiolFL
coumarinic
 phthalideFL/FR
earthy
 difurfuryl sulfideFL
fatty
 cocoa butter distillatesFL
floral
isoamyl cinnamateFL/FR
isoamyl phenyl acetateFL/FR
 cocoa pentenalFL/FR
 orris rhizome resinoid (iris pallida)FL/FR
 rosa canina seed extractFL
fruity
 allyl phenoxyacetateFL/FR
para-anisyl acetateFL/FR
para-anisyl alcoholFL/FR
 butyl 2-methyl butyrateFL/FR
 cherry oxyacetateFL/FR
 ethyl 3-oxohexanoateFL
(E,E)-ethyl sorbateFL/FR
 furfuryl isovalerateFL
 furfuryl propionateFL
 hexanal propylene glycol acetalFL/FR
 lilac pentanolFL/FR
(E,E)-methyl sorbateFL
 phenethyl octanoateFL/FR
isopropyl formateFL/FR
 tiglaldehydeFL/FR
fusel
2-methyl butyraldehydeFL/FR
3-methyl-2-butanolFL
green
isobutyl 2-butenoateFL/FR
 cocoa butenalFL/FR
2-ethyl butyraldehydeFL
2-methyl-5-isopropyl pyrazineFL
 neryl butyrateFL/FR
herbal
 dihydroanetholFL/FR
 ocimum basilicum leaf oil CO2 extractFL/FR
 wormwood oil americaFL/FR
 wormwood oil cubaFL/FR
 wormwood oil italyFL/FR
 wormwood oil polandFL/FR
honey
 benzyl phenyl acetateFL/FR
 ethyl phenyl acetateFL/FR
 phenethyl phenyl acetateFL/FR
 phenyl acetaldehydeFL/FR
licorice
 estragoleFL/FR
 glycyrrhiza glabra root extractFL/FR
 glycyrrhiza glabra root extract powderFL
meaty
 benzothiazoleFL/FR
2,6-dimethyl pyrazineFL/FR
3-mercapto-2-butanoneFL
2-methyl 3-(methyl thio) furanFL
minty
 ethyl salicylateFL/FR
mustard
 furfuryl methyl etherFL
musty
2,5-dimethyl pyrazineFL/FR
2-ethoxythiazoleFL
 hazelnut pyrazineFL/FR
 menthofuranFL/FR
2-methyl 5-(methyl thio) furanFL/FR
 propionaldehydeFL
 thymyl methyl etherFL/FR
2,3,5-trimethyl pyrazineFL/FR
nutty
2-acetyl furanFL/FR
2-acetyl pyrroleFL/FR
3-acetyl-2,5-dimethyl furanFL/FR
2-acetyl-3-ethyl pyrazineFL/FR
2-acetyl-5-methyl furanFL/FR
3,5(6)-cocoa pyrazineFL
3,5-cocoa pyrazineFL/FR
3,6-cocoa pyrazineFL/FR
2,3-dimethyl pyrazineFL/FR
4,5-dimethyl-2-ethyl-3-thiazolineFL/FR
2,4-dimethyl-5-vinyl thiazoleFL
2-ethyl pyrazineFL/FR
 filbert heptenoneFL/FR
2,6-lutidineFL/FR
2-methoxy-3-methyl pyrazineFL/FR
2-methyl pyrazineFL/FR
5-methyl quinoxalineFL/FR
2-methyl thio-3,5 or 6-methyl pyrazineFL/FR
 nutty pyrazineFL/FR
 nutty thiazoleFL
 peanut oxazoleFL
 tetrahydrofurfuryl alcoholFL/FR
2,3,5,6-tetramethyl pyrazineFL/FR
2,4,5-trimethyl thiazoleFL/FR
 vinyl sulfurolFL/FR
onion
 furfuryl isopropyl sulfideFL
phenolic
 guaiacyl phenyl acetateFL/FR
powdery
ortho-acetanisoleFL/FR
 powdery ketoneFL
roasted
2-acetyl pyrazineFL/FR
roasted arabica coffee bean oilFL/FR
 ethyl 3-(furfuryl thio) propionateFL
 furfuryl thioacetateFL/FR
solvent
2-ethyl furanFL
 methyl phenyl sulfideFL
spicy
para-anisyl formateFL/FR
para-anisyl methyl ketoneFL/FR
 artemisia dracunculus herb oilFL/FR
para-alpha-dimethyl styreneFL/FR
sulfurous
 butyl mercaptanFL
 ethyl methyl sulfideFL
S-ethyl thioacetateFL
S-furfuryl thioformateFL/FR
 furfuryl thiopropionateFL
3-methyl-2-butane thiolFL
2-thienyl mercaptanFL
sweet
 cyclohexyl acetic acidFL/FR
neohesperidin dihydrochalconeFL
tonka
gamma-valerolactoneFL/FR
vanilla
omega-pentadecalactoneFL/FR
 propenyl guaetholFL/FR
vegetable
1-furfuryl pyrroleFL/FR
whiskey
3-methyl-1-pentanolFL/FR
winey
 valeraldehydeFL/FR
woody
 juniper berry oleoresinFL/FR
 
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Potential Uses:
 aniseFL
 chocolateFL
 coffeeFL
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Occurrence (nature, food, other): note
 cocoa - 1 mg/kg
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 coffee
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Synonyms:
2-N-butyl-3-methyl pyrazine
2-butyl-3-methylpyrazine
2-N-butyl-3-methylpyrazine
2-methyl-3-butyl pyrazine
2-methyl-3-butyl-pyrazine
2-methyl-3-butylpyrazine
 pyrazine, 2-butyl-3-methyl-
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