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Online Edition: "Specifications for Flavourings"

Flavouring 3,4-Hexanedione
Synonym(s) 3,4-Dioxohexane;Dipropionyl;Diethyl-alpha,beta-diketone
Latest JECFA evaluation 1998 (Session 51)
Status of specification Full
Chemical name Hexane-3,4-dione
JECFA number 413
CAS number 4437-51-8
FEMA number 3168
COE number 2255
FLAVIS number
Molecular weight 114.14
Chemical formula C6H10O2
Physical form/odour yellow oil
Solubility almost insoluble in water; soluble in alcohol and oils; very soluble in propylene glycol
Solubility in ethanol
Boiling point (°C) 130°
Assay min % 97.0%
Acid value max
Refractive index 1.408-1.413
Specific gravity 0.941-0.950 (20°)
Other requirements
ID Test IR