ethenyl dimethyl pyrazine
3,5-dimethyl-2-vinylpyrazine
 
Notes:
Formed by thermal interaction of ribose and cysteine. Odour constit. of roasted coffee. Also present in fried beef volatiles
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CAS Number: 157615-33-3Picture of molecule3D/inchi
Nikkaji Web: J785.350E
MDL: MFCD18449161
XlogP3: 1.40 (est)
Molecular Weight: 134.18170000
Formula: C8 H10 N2
NMR Predictor: Predict (works with chrome or firefox)
Category: flavoring agents
 
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Physical Properties:
Assay: 95.00 to 100.00 % 
Food Chemicals Codex Listed: No
Boiling Point: 183.00 to  184.00 °C. @ 760.00 mm Hg
Vapor Pressure: 1.034000 mmHg @ 25.00 °C. (est)
Flash Point: 154.00 °F. TCC ( 67.78 °C. )
logP (o/w): 1.503 (est)
Soluble in:
 alcohol
 water, 1963 mg/L @ 25 °C (est)
Insoluble in:
 water
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Organoleptic Properties:
 
Odor Type: earthy
 
 earthy  musty  
Odor Description:
at 0.10 % in dipropylene glycol. 		earthy musty
 
Odor and/or flavor descriptions from others (if found).
 
 
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Cosmetic Information:
None found
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Suppliers:
Carbosynth
For experimental / research use only.
2-Ethenyl-3,5-dimethylpyrazine
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Safety Information:
 
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 ethenyl dimethyl pyrazine usage levels up to:
 not for fragrance use.
 
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Safety References:
EPI System: View
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EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 6429268
National Institute of Allergy and Infectious Diseases: Data
 2-ethenyl-3,5-dimethylpyrazine
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References:
 2-ethenyl-3,5-dimethylpyrazine
NIST Chemistry WebBook: Search Inchi
Pubchem (cid): 6429268
Pubchem (sid): 10545405
Flavornet: 157615-33-3
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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): HMDB34891
FooDB: FDB013467
VCF-Online: VCF Volatile Compounds in Food
ChemSpider: View
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Potential Blenders and core components note
 
For Odor
alliaceous
 methyl furfuryl disulfideFL/FR
balsamic
2-acetyl furanFL/FR
 bornyl formateFL/FR
 caramel furanone solutionFL/FR
 coffee dioneFL/FR
 cycloteneFL/FR
 fenugreek absoluteFL/FR
 fenugreek oleoresinFL/FR
5-methyl furfuralFL/FR
chocolate
 cocoa hexenalFL/FR
2,6-dimethyl pyrazineFL/FR
2-methoxy-3-methyl pyrazineFL/FR
2,4,5-trimethyl thiazoleFL/FR
cocoa
2-methyl butyraldehydeFL/FR
coconut
delta-heptalactoneFL/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
1-nonen-3-olFL/FR
 nutty pyrazineFL/FR
1-octen-3-olFL/FR
floral
 linalool oxideFL/FR
 octyl acetateFL/FR
2-phenyl propyl acetateFL/FR
fruity
 amyl formateFL/FR
2-pentyl furanFL/FR
 tropical thiazoleFL/FR
 tropical trithianeFL/FR
green
 geranium absoluteFL/FR
(Z)-3-hepten-1-olFL/FR
1-phenyl-2-pentanolFL/FR
 rose furan epoxideFL/FR
herbal
6-hydroxydihydrotheaspirane (mixture of isomers)FL/FR
 thymyl methyl etherFL/FR
 wormwood oil americaFL/FR
 wormwood oil cubaFL/FR
 wormwood oil italyFL/FR
 wormwood oil polandFL/FR
 menthofuranFL/FR
nutty
3,5-cocoa pyrazineFL/FR
2,3-dimethyl pyrazineFL/FR
4,5-dimethyl-2-ethyl-3-thiazolineFL/FR
2-ethyl-4-methyl thiazoleFL/FR
 filbert heptenoneFL/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
phenolic
para-alpha-dimethyl styreneFL/FR
popcorn
2-acetyl pyrazineFL/FR
roasted
 fenugreek resinoidFL/FR
sulfurous
 benzothiazoleFL/FR
 furfuryl thioacetateFL/FR
S-furfuryl thioformateFL/FR
2-methyl 5-(methyl thio) furanFL/FR
tropical
 tropical 3-thiobutyrateFL/FR
vegetable
1-furfuryl pyrroleFL/FR
 tetrahydrofurfuryl alcoholFL/FR
waxy
 octyl isobutyrateFL/FR
woody
 juniper berry oleoresinFL/FR
 
For Flavor
 
No flavor group found for these
 benzyl disulfideFL
 bitterness blockersFL
 bornyl formateFL/FR
2,5-dimethyl-3-thiofuroyl furanFL
(Z)-3-hepten-1-olFL/FR
2-methyl-3-,5 or 6-(furfuryl thio) pyrazineFL/FR
2-methyl-3-(methyl thio) pyrazineFL/FR
2-methyl-3-furyl tetrasulfideFL
2-phenyl propyl acetateFL/FR
3-propyl pyridineFL
 pyrazines mixtureFL
 rose furan epoxideFL/FR
alliaceous
 benzyl mercaptanFL
 dicyclohexyl disulfideFL
 tropical thiazoleFL/FR
brown
 fenugreek oleoresinFL/FR
1-hydroxy-2-butanoneFL/FR
5-methyl furfuralFL/FR
burnt
 furfuryl alcoholFL
2-methyl quinoxalineFL
 tea pyrroleFL
camphoreous
6-hydroxydihydrotheaspirane (mixture of isomers)FL/FR
caramellic
 caramel furanoneFL
 caramel furanone solutionFL/FR
 cycloteneFL/FR
 fenugreek absoluteFL/FR
 fenugreek resinoidFL/FR
cocoa
 cocoa hexenalFL/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
creamy
 octyl isobutyrateFL/FR
earthy
 difurfuryl sulfideFL
1-nonen-3-olFL/FR
fruity
 amyl formateFL/FR
 furfuryl propionateFL
1-phenyl-2-pentanolFL/FR
 tropical trithianeFL/FR
fusel
2-methyl butyraldehydeFL/FR
green
 geranium absoluteFL/FR
 horseradish oilFL
 linalool oxideFL/FR
2-methyl-5-isopropyl pyrazineFL
2-pentyl furanFL/FR
 propylene glycol acetone ketalFL
herbal
 wormwood oil americaFL/FR
 wormwood oil cubaFL/FR
 wormwood oil italyFL/FR
 wormwood oil polandFL/FR
lactonic
delta-heptalactoneFL/FR
meaty
 benzothiazoleFL/FR
3-mercapto-2-butanoneFL
2-methyl 3-(methyl thio) furanFL
mushroom
1-octen-3-olFL/FR
mustard
 furfuryl methyl etherFL
musty
2-ethoxythiazoleFL
 menthofuranFL/FR
2-methyl 5-(methyl thio) furanFL/FR
 thymyl methyl etherFL/FR
nutty
2-acetyl furanFL/FR
3,5-cocoa pyrazineFL/FR
3,5(6)-cocoa pyrazineFL
2,3-dimethyl pyrazineFL/FR
2,6-dimethyl pyrazineFL/FR
4,5-dimethyl-2-ethyl-3-thiazolineFL/FR
 filbert heptenoneFL/FR
2-methoxy-3-methyl pyrazineFL/FR
5-methyl quinoxalineFL/FR
2-methyl thio-3,5 or 6-methyl pyrazineFL/FR
 nutty pyrazineFL/FR
 nutty thiazoleFL
 tetrahydrofurfuryl alcoholFL/FR
2,3,5,6-tetramethyl pyrazineFL/FR
2,4,5-trimethyl thiazoleFL/FR
onion
 furfuryl isopropyl sulfideFL
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-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
 tropical 3-thiobutyrateFL/FR
vegetable
1-furfuryl pyrroleFL/FR
waxy
 octyl acetateFL/FR
woody
 juniper berry oleoresinFL/FR
 
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Potential Uses:
None Found
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Occurrence (nature, food, other): note
 coffee
Search  PMC Picture
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Synonyms:
3,5-dimethyl-2-vinylpyrazine
2-ethenyl-3,5-dimethyl pyrazine
2-ethenyl-3,5-dimethylpyrazine
 pyrazine, 2-ethenyl-3,5-dimethyl-
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