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Online Edition: "Specifications for Flavourings"

Flavouring Isoambrettolide
Synonym(s) 9-Hexadecenoic acid, 16-hydroxy-, omicron-lactone;delta-9-Isoambrettolic acid, lactone
Latest JECFA evaluation 2010 (Session 73)
Status of specification Full
Chemical name oxacycloheptadec-10-en-2-one
JECFA number 1991
CAS number 28645-51-4
FEMA number 4145
COE number
FLAVIS number 10.063
Molecular weight 252.39
Chemical formula C16H28O2
Physical form/odour Clear colourless or pale yellow liquid; Sweet musky fruity aroma
Solubility Soluble in non-polar solvents; insoluble in water
Solubility in ethanol Soluble
Boiling point (°C) 1.5-1.6° (0.1 mm Hg)
Assay min % 95%
Acid value max
Refractive index 1.477-1.482
Specific gravity 0.949-0.957
Other requirements SC: 1-3% (Z)-isomer