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Online Edition: "Specifications for Flavourings"

Flavouring 2-Acetyl-3,(5 or 6)-dimethylpyrazine
Synonym(s) Mixture of 3-Acetyl-2,5-dimethylpyrazine and 3-Acetyl-2,6-dimethylpyrazine
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name 2-Acetyl-3,5-dimethylpyrazine and 3-Acetyl-2,5-dimethylpyrazine
JECFA number 786
CAS number 54300-08-2;54300-09-3
FEMA number 3327
COE number 11294
FLAVIS number
Molecular weight 150.18
Chemical formula C8H10ON2
Physical form/odour colourless to pale yellow liquid with a popcorn, roasted hazelnut odour
Solubility soluble in water, organic solvents, oils
Solubility in ethanol miscible at room temperature
Boiling point (°C) 70° (7 mm Hg)
Assay min % 97% (sum of isomers)
Acid value max
Refractive index 1.510-1.520
Specific gravity 1.070-1.075
Other requirements
ID Test IR