2-Methyl-3-(methylthio)pyrazine

CAS No.：2882-20-4

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This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
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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 Chemical Properties

Boiling point	213-214 °C (lit.)
density	1.15 g/mL at 25 °C (lit.)
refractive index	n20/D 1.585(lit.)
FEMA	3208 \| (METHYLTHIO)METHYLPYRAZINE (MIXTURE OF ISOMERS)
Fp	210 °F
storage temp.	Sealed in dry,Room Temperature
pka	0.88±0.10(Predicted)
form	clear liquid
color	Colorless to Almost colorless
JECFA Number	797
CAS DataBase Reference	2882-20-4(CAS DataBase Reference)
NIST Chemistry Reference	Pyrazine, 2-methyl-3-(methylthio)-(2882-20-4)
EPA Substance Registry System	Pyrazine, 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

Provider	Language
ACROS	English
SigmaAldrich	English
ALFA	English

2-Methyl-3-(methylthio)pyrazine Usage And Synthesis

Chemical Properties	clear colorless liquid
Chemical Properties	2-Methyl-3(or 5 or 6)-methylthiopyrazine has a roasted almond, hazelnut and vegetable aroma.
Preparation	From 2-methylchloropyrazine; a mixture of 2-methyl-3-methylthiopyrazine, 2-methyl-5-methylthiopyrazine, and 2-methyl-6-methylthiopyrazine is obtained.
Aroma threshold values	Detection: 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 values	Taste 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 materials

Sodium thiomethoxide-->2-Chloropyrazine

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