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2-Methyl-3-(methylthio)pyrazine

2-Methyl-3-(methylthio)pyrazine Basic information
Product Name:2-Methyl-3-(methylthio)pyrazine
Synonyms:METHYL MERCAPTO METHYLPYRAZINE;METHYL MERCAPTO-METHYLPYRAZINES;METHYL(METHYLTHIO)PYRAZINE;(METHYLTHIO)METHYLPYRAZINE;TIMTEC-BB SBB008573;2-Methyl-3-(methylsulfanyl)pyrazine;2-methyl-3-(methylthio)-pyrazin;2-METHYLMERCAPTO-3-METHYLPYRAZINE
CAS:2882-20-4
MF:C6H8N2S
MW:140.21
EINECS:220-736-8
Product Categories:Building Blocks;Heterocyclic Building Blocks;Heterocyclic Compounds;Mono- & Polyalkylpyrazines;Pyrazines;Pyridines ,Halogenated Heterocycles
Mol File:2882-20-4.mol
2-Methyl-3-(methylthio)pyrazine Structure
2-Methyl-3-(methylthio)pyrazine Chemical Properties
Boiling point 213-214 °C (lit.)
density 1.15 g/mL at 25 °C (lit.)
FEMA 3208 | (METHYLTHIO)METHYLPYRAZINE (MIXTURE OF ISOMERS)
refractive index n20/D 1.585(lit.)
Fp 210 °F
storage temp. Sealed in dry,Room Temperature
pka0.88±0.10(Predicted)
form clear liquid
color Colorless to Almost colorless
Odorat 0.10 % in propylene glycol. roasted meat nutty almond vegetable
Odor Typenutty
JECFA Number797
LogP1.72
CAS DataBase Reference2882-20-4(CAS DataBase Reference)
NIST Chemistry ReferencePyrazine, 2-methyl-3-(methylthio)-(2882-20-4)
EPA Substance Registry SystemPyrazine, 2-methyl-3-(methylthio)- (2882-20-4)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26-36
RIDADR UN 3334
WGK Germany 3
TSCA Yes
HS Code 29339900
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
ALFA English
2-Methyl-3-(methylthio)pyrazine Usage And Synthesis
Chemical Propertiesclear colorless liquid
Chemical Properties2-Methyl-3(or 5 or 6)-methylthiopyrazine has a roasted almond, hazelnut and vegetable aroma.
PreparationFrom 2-methylchloropyrazine; a mixture of 2-methyl-3-methylthiopyrazine, 2-methyl-5-methylthiopyrazine, and 2-methyl-6-methylthiopyrazine is obtained.
DefinitionChEBI: 2-Methyl-(3 or 5 or 6)-(methylthio)pyrazine (mixture of isomers) is an aryl sulfide.
Aroma threshold valuesDetection: 4 to 60 ppb. Aroma characteristics at 1.0%: toasted popcorn, roasted almond, hazelnut, peanut and cashewnutty, with a caramellic and corn-chip nuance.
Taste threshold valuesTaste characteristics at 3 to 10 ppm: nutty, roasted and earthy with coffee and corn nuances, peanut and pecan nutty, popcorn and corn chip–like with a burnt musty nuance.
2-Methyl-3-(methylthio)pyrazine Preparation Products And Raw materials
Raw materialsSodium thiomethoxide-->2-Chloropyrazine
2-Methylpyrazine Paraquat dichloride Methyl 2-(Methylthio)pyrazine Pyrazine Acetonitrile 2-METHYLTHIO-3,5-METHYLPYRAZINE Basic Violet 1 2-(TRIFLUOROMETHYL)-3-([3-(TRIFLUOROMETHYL)PHENYL]SULFANYL)QUINOXALINE METHYL 2-([3-(TRIFLUOROMETHYL)-2-QUINOXALINYL]SULFANYL)ACETATE Tetramethylpyrazine AKOS BBS-00001854 2-Methyl-3-(methylthio)pyrazine Pyrazinamide Methanol AKOS BBS-00001879 Methyl acetate 2-METHYLTHIO-3-ISOPROPYLPYRAZINE
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