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Online Edition: "Specifications for Flavourings"

Flavouring 2,5-Dimethylpyrazine
Synonym(s) 2,5-Dimethyl-1,4-diazine;Ketine;Glycoline
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name 2,5-Dsimethylpyrazine
JECFA number 766
CAS number 123-32-0
FEMA number 3272
COE number 2210
FLAVIS number
Molecular weight 108.14
Chemical formula C6H8N2
Physical form/odour colourless to slightly yellow liquid with an earthy, potato-like odour
Solubility soluble in water, organic solvents, oils
Solubility in ethanol miscible at room temperature
Boiling point (°C) 155°
Assay min % 98% (sum of 2,3- 2,5- and 2,6-isomers)
Acid value max
Refractive index 1.497-1.503
Specific gravity 0.982-1.000
Other requirements
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