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2-Ethyl-3-methylpyrazine

2-Ethyl-3-methylpyrazine Basic information
Product Name:2-Ethyl-3-methylpyrazine
Synonyms:2-ethyl-3-methyl-pyrazin;Pyrazine, 3-ethyl-2-methyl;2-ETHYL-3-METHYLPYRAZINE;2-METHYL-3-ETHYLPYRAZINE;3-ETHYL-2-METHYLPYRAZINE;3-METHYL-2-ETHYLPYRAZINE;ETHYL-3-METHYLPYRAZINE,2-;FEMA NUMBER 3155
CAS:15707-23-0
MF:C7H10N2
MW:122.17
EINECS:239-799-8
Product Categories:Mono- & Polyalkylpyrazines;pyrazine Flavor;Pyrazine;Alphabetical Listings;E-F;Flavors and Fragrances;Pyrazines
Mol File:15707-23-0.mol
2-Ethyl-3-methylpyrazine Structure
2-Ethyl-3-methylpyrazine Chemical Properties
Boiling point 57 °C10 mm Hg(lit.)
density 0.987 g/mL at 25 °C
vapor pressure 1.74hPa at 20℃
FEMA 3155 | 2-ETHYL-3-METHYLPYRAZINE
refractive index n20/D 1.503(lit.)
Fp 138 °F
storage temp. Sealed in dry,Room Temperature
solubility sparingly soluble
pka1.94±0.10(Predicted)
form neat
color Colorless to Light yellow
Specific Gravity0.987
Odorat 0.10 % in dipropylene glycol. nutty peanut musty corn raw earthy bread
Odor Typenutty
Water Solubility sparingly soluble
JECFA Number768
BRN 956775
LogP1.42 at 25℃
CAS DataBase Reference15707-23-0(CAS DataBase Reference)
NIST Chemistry ReferencePyrazine, 2-ethyl-3-methyl-(15707-23-0)
EPA Substance Registry SystemPyrazine, 2-ethyl-3-methyl- (15707-23-0)
Safety Information
Hazard Codes Xn,Xi
Risk Statements 22-36/37/38
Safety Statements 26-24/25
RIDADR UN 1993 3/PG 3
WGK Germany 3
RTECS UQ3335000
Hazard Note Irritant
TSCA Yes
HazardClass 3
PackingGroup III
HS Code 29339900
MSDS Information
ProviderLanguage
2-Ethyl-3-methylpyrazine English
SigmaAldrich English
ACROS English
ALFA English
2-Ethyl-3-methylpyrazine Usage And Synthesis
Chemical Propertiesclear colorless to slightly yellow liquid
Chemical Properties2-Ethyl-3-methylpyrazine has a strong, raw-potato, roasted, earthy odor.
OccurrenceReported found in bakery products, roasted barley, coffee, peanuts, filberts, potato products, soy products, roasted and fried chicken, beef, pork, beer, rum, cocoa, coffee, tea, malt, shrimp and crayfish.
Uses2-Ethyl-3-methylpyrazine is used in preparation of Chinese chestnut pyrolyzate and their application to e-cigarette.
UsesFood additive.
PreparationBy condensation of ethylenediamine with 2,3-pentanedione.
DefinitionChEBI: 2-Ethyl-3-methylpyrazine, 9CI is a member of pyrazines.
Aroma threshold valuesDetection: 2 ppm (130 ppb in water)
Taste threshold valuesTaste characteristics at 10 ppm: nutty, peanut, musty corn-like with raw and oily nuances.
HazardModerately toxic by ingestion.
Flammability and ExplosibilityNotclassified
Safety ProfileModerately toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes.
2-Ethyl-3-methylpyrazine Preparation Products And Raw materials
Raw materialsEthylenediamine-->Acetylacetone
Preparation Products2-Acetyl-3-ethylpyrazine
2-Methylpyrazine Trinexapac-ethyl Ethanol Ethyl pyruvate Methyl 2-hydroxyethyl cellulose Ethyl formate 2-Butanone Ethylparaben Ethylpyrazine 2-Ethyl-3-methylpyrazine (2-Methoxyethyl)benzene ISOXADIFEN-ETHYL Ethyl acetate Pyrazinamide Ethyl acrylate Sulfachoropyrazine sodium Glipizide Ethyl cyanoacetate
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