Product

2-METHYLTHIO-3,5-METHYLPYRAZINE

CAS No.：67952-65-2

Other grades of this product :

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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