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Online Edition: "Specifications for Flavourings"

Flavouring 2-Methyl-5-isopropylpyrazine
Synonym(s) 2-Methyl-5-isopropyl-1,4-diazine;5-Isopropyl-2-methylpyrazine
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name 2-Isopopyl-5-methypyrazine
JECFA number 772
CAS number 13925-05-8
FEMA number 3554
COE number 2268
FLAVIS number
Molecular weight 136.2
Chemical formula C8H12N2
Physical form/odour colourless to slightly yellow liquid with a roasted, coffee, nutty, earthy odour
Solubility soluble in water, soluble in oils, organic solvents
Solubility in ethanol miscible at room temperature
Boiling point (°C) 190°
Assay min % 97%
Acid value max
Refractive index 1.492-1.498
Specific gravity 0.977-0.984
Other requirements