2-METHYLTHIO-3,5-METHYLPYRAZINE

CAS No.：67952-65-2

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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-METHYLTHIO-3,5-METHYLPYRAZINE Basic information

Product Name:	2-METHYLTHIO-3,5-METHYLPYRAZINE
Synonyms:	2-METHYLTHIO-3,5-METHYLPYRAZINE;FEMA 3208;methyl(methylthio)-pyrazin;2-Methylthio-3(6)-methyl-pyrazine;(METHYLTHIO)METHYLPYRAZINE 98+% MIXTU&;(Methylthio)Methylpyrazine, Mixture of isoMers;2-Methylthio-3 (or 5 or 6)-Methylpyrazine;Pyrazine, methyl(methylthio)-
CAS:	67952-65-2
MF:	C7H10N2S
MW:	154.23
EINECS:	267-918-3
Product Categories:	Alphabetical Listings;Flavors and Fragrances;pyrazine Flavor;M-N
Mol File:	67952-65-2.mol

2-METHYLTHIO-3,5-METHYLPYRAZINE Chemical Properties

density	1.145 g/mL at 25 °C(lit.)
refractive index	n20/D 1.583(lit.)
FEMA	3208 \| (METHYLTHIO)METHYLPYRAZINE (MIXTURE OF ISOMERS)
Fp	193 °F
JECFA Number	797
InChIKey	WVLCKAWPCLTOOS-UHFFFAOYSA-N
CAS DataBase Reference	67952-65-2(CAS DataBase Reference)
EPA Substance Registry System	Pyrazine, methyl(methylthio)- (67952-65-2)

Safety Information

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-36
WGK Germany	3

MSDS Information

2-METHYLTHIO-3,5-METHYLPYRAZINE Usage And Synthesis

Description	2-Methyl-(3 or 5 or 6)-(methylthio)pyrazine (mixture of isomers) is like roasted almonds, hazelnuts. This may be prepared from 2-methylchloropyrazine; a mixture of 2-methyl-3-methylthiopyrazine, 2-methyl-5-methylthiopyrazine, and 2-methyl-6-methylthiopyrazine is obtained.
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-METHYLTHIO-3,5-METHYLPYRAZINE Preparation Products And Raw materials

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