ChemicalBook Product Catalog Flavors and fragrances Synthetic fragrances Oxygen-containing heterocyclic compounds Thiazole, thiophene, and pyridine 2-METHYLTHIO-3,5-METHYLPYRAZINE

2-METHYLTHIO-3,5-METHYLPYRAZINE

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;M-N;pyrazine Flavor
Mol File:67952-65-2.mol
2-METHYLTHIO-3,5-METHYLPYRAZINE Structure
2-METHYLTHIO-3,5-METHYLPYRAZINE Chemical Properties
density 1.145 g/mL at 25 °C(lit.)
FEMA 3208 | (METHYLTHIO)METHYLPYRAZINE (MIXTURE OF ISOMERS)
refractive index n20/D 1.583(lit.)
Fp 193 °F
Odorat 0.10 % in dipropylene glycol. nutty earthy peanut musty coffee vegetable
Odor Typenutty
JECFA Number797
InChIKeyWVLCKAWPCLTOOS-UHFFFAOYSA-N
LogP0.06
CAS DataBase Reference67952-65-2(CAS DataBase Reference)
EPA Substance Registry SystemPyrazine, 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
Description2-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 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.
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-METHYLTHIO-3,5-METHYLPYRAZINE Preparation Products And Raw materials
Preparation ProductsS-METHYL-S-(2-METHYLPYRAZINYL) SULFOXIMINE
2-METHYLTHIO-3(5/6)-METHYLPYRAZINE,2-METHYLTHIO-3(5/6)-METHYLPYRAZINE 2-METHYLTHIO-3(5)-METHYLPYRAZINE MIXTURE 2-Mercaptopyrazine 2-(Methylthio)pyrazine Pyrazine 2-Methylthio-5-methylpyrazine 2-METHYLTHIO-3,5-METHYLPYRAZINE 2,6-Dimethylpyrazine 2-METHYLTHIO-3(5)-METHYLPYRAZINE MIXTURE
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