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Online Edition: "Specifications for Flavourings"

Flavouring alpha-Damascone
Synonym(s) Dihydro floriffone A;4-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-but-2-en-4-one;4-(2,6,6-Trimethyl-2-cyclohexenyl)-2-butene-4-one
Latest JECFA evaluation 2003 (Session 61)
Status of specification Full
Chemical name 1-(2,6,6-Trimethyl-2-cyclohexenyl)-2-buten-1-one
JECFA number 385
CAS number 43052-87-5
FEMA number 3659
COE number 11053
FLAVIS number 07.134
Molecular weight 192.3
Chemical formula C13H20O
Physical form/odour colourless to pale yellow liquid with a fruity floral odour
Solubility in ethanol 1 ml in 10 ml 95% alcohol
Boiling point (°C) 90-100°
Assay min % 98% (sum of cis and trans isomers)
Acid value max
Refractive index 1.492-1.499
Specific gravity 0.928-0.938
Other requirements 92-96% trans, 4-8% cis isomer
ID Test IR