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Online Edition: "Specifications for Flavourings"

Flavouring 2,3,5,6-Tetramethylpyrazine
Synonym(s) Tetramethyl-1,4-diazine
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name Tetramethylpyrazine
JECFA number 780
CAS number 1124-11-4
FEMA number 3237
COE number 734
FLAVIS number
Molecular weight 136.2
Chemical formula C8H12N2
Physical form/odour white crystals or powder with a musty, fermented, coffee odour
Solubility slightly soluble in water; soluble in oils, propylene glycol, organic solvents
Solubility in ethanol very soluble
Boiling point (°C) 190°
Assay min % 95%
Acid value max
Refractive index NA
Specific gravity NA
Other requirements mp: 85-90°
ID Test IR