2,6-Dimethyl pyrazine: Appearance: White to yellow crystals or liquid Odor: Cocoa roasted nuts roast beef coffee Used as flavoring ingredients in food industry. Flavouring 2,6-Dimethylpyrazine Synonym(s) 2,6-Dimethyl-1,4-diazine 2,6-Dimethyl-p-diazine Latest JECFA evaluation 2001 (Session 57) Status of specification Full Chemical name 2,6-Dimethypyrazine JECFA number 767 CAS number 108-50-9 FEMA number 3273 COE number 2211 FLAVIS number - Molecular weight 108.14 Chemical formula C6H8N2 Physical form/odour white to yellow lumpy crystals with a nutty, coffee-like odour Solubility soluble in water, organic solvents Solubility in ethanol very soluble Boiling point (°C) 154° Assay min % 98% (sum of 2,3- 2,5- and 2,6-isomers)