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2,5-dimethyl-3,6-diethyl pyrazine
pyrazine, 2,5-diethyl-3,6-dimethyl-

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CAS Number: 18903-30-5Picture of molecule3D/inchi
FDA UNII: Search
Nikkaji Web:J694.443D
XlogP3-AA:2.20 (est)
Molecular Weight:164.25152000
Formula:C10 H16 N2
NMR Predictor:Predict (works with chrome, Edge or firefox)
Category:natural substances and extractives
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar:Search
Google Books:Search
Google Scholar: with word "volatile"Search
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Google Patents:Search
US Patents:Search
EU Patents:Search
Pubchem Patents:Search
Physical Properties:
Appearance:colorless to pale yellow clear liquid (est)
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Boiling Point: 221.00 to 222.00 °C. @ 760.00 mm Hg (est)
Vapor Pressure:0.162000 mmHg @ 25.00 °C. (est)
Flash Point: 181.00 °F. TCC ( 82.50 °C. ) (est)
logP (o/w): 2.226 (est)
Soluble in:
 water, 144 mg/L @ 25 °C (est)
Insoluble in:
Organoleptic Properties:
Flavor Type: coffee
coffee green earthy
Odor and/or flavor descriptions from others (if found).
Cosmetic Information:
None found
BOC Sciences
For experimental / research use only.
United International
2,5-Diethyl-3,6-Dimethyl Pyrazine
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
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
Safety in Use Information:
natural substances and extractives
Recommendation for 2,5-dimethyl-3,6-diethyl pyrazine usage levels up to:
 not for fragrance use.
Recommendation for 2,5-dimethyl-3,6-diethyl pyrazine flavor usage levels up to:
 not for flavor use.
Safety References:
EPI System: View
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :12669071
National Institute of Allergy and Infectious Diseases:Data
NIST Chemistry WebBook:Search Inchi
Pubchem (cid):12669071
Pubchem (sid):312634811
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):HMDB39979
VCF-Online:VCF Volatile Compounds in Food
Potential Blenders and core components note
None Found
Potential Uses:
None Found
Occurrence (nature, food, other):note
 beef cooked beef
Search PMC Picture
 porphyra yezoensis
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2,5-diethyl-3,6-dimethyl pyrazine
 pyrazine, 2,5-diethyl-3,6-dimethyl-
Constit. of cooked beef and roast coffee aroma. Maillard product
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