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Online Edition: "Specifications for Flavourings"

Flavouring 4-Hexen-3-one
Synonym(s) 2-Hexen-4-one
Latest JECFA evaluation 2002 (Session 59)
Status of specification Full
Chemical name Hexen-4-en-3-one
JECFA number 1125
CAS number 2497-21-4
FEMA number 3352
COE number 718
FLAVIS number
Molecular weight 98.15
Chemical formula C6H10O
Physical form/odour Colourless to yellow liquid; pugent, acrid, metallic odour
Solubility slightly soluble in water; soluble in oil
Solubility in ethanol Miscible at room temperature
Boiling point (°C) 93° (150 mm Hg)
Assay min % 98%
Acid value max
Refractive index 1.437-1.443
Specific gravity 0.855-0.861
Other requirements