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Online Edition: "Specifications for Flavourings"

Flavouring 4-Hydroxy-3-methyloctanoic acid gamma-lactone
Synonym(s) Whiskey lactone
Latest JECFA evaluation 1998 (Session 51)
Status of specification Full
Chemical name 3-Methyl-4-octanolide;5-Butyl-4-methyldihydro-2(3H)-furanone
JECFA number 437
CAS number 39212-23-2
FEMA number 3803
COE number
FLAVIS number
Molecular weight 156.23
Chemical formula C9H16O2
Physical form/odour colourless liquid
Solubility soluble in water to <0.1%; soluble in hexane to >50%
Solubility in ethanol
Boiling point (°C) 93-94°
Assay min % 98.0%
Acid value max
Refractive index 0.952
Specific gravity 1.442-1.446
Other requirements Flash point: >100°
ID Test IR