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Online Edition: "Specifications for Flavourings"

Flavouring (3, 5 or 6)-Methylthio-2-methylpyrazine
Synonym(s) 2-Methyl-3,5-or 6-methylthiopyrazine;Methylpyrazinyl methyl sulfides (mixture)
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name Mixture of 2-Methyl-3-(methylthio)pyrazine and 2-Methyl-5-(methylthio)pyrazine and 2-Methyl-6-(methylthio)pyrazine
JECFA number 797
CAS number 67952-65-2;2882-20-4;2884-14-2;2884-13-1
FEMA number 3208
COE number 2290
FLAVIS number
Molecular weight 140.21
Chemical formula C6H8N2S
Physical form/odour colourless to light yellow liquid with a cooked meat, roasted, almond, nutty, vegetable odour
Solubility miscible at room temperature
Solubility in ethanol miscible at room temperature
Boiling point (°C) 85-87° (10 mm Hg)
Assay min % 99% (sum of isomers)
Acid value max
Refractive index 1.570-1.590
Specific gravity 1.133-1.153
Other requirements
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