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Online Edition: "Specifications for Flavourings"

Flavouring 5-Hydroxyundecanoic acid lactone
Synonym(s) delta-Undecalactone;Undeca-1,5-lactone
Latest JECFA evaluation 1998 (Session 51)
Status of specification Full
Chemical name 5-Undecanolide;6-Hexyltetrahydro-2-pyrone
JECFA number 234
CAS number 710-04-3
FEMA number 3294
COE number 688
FLAVIS number
Molecular weight 184.28
Chemical formula C11H20O2
Physical form/odour colourless to pale yellow liquid with a creamy, peach-like odour
Solubility in ethanol 1 ml in 1 ml 95% alcohol
Boiling point (°C) 152-155° (10.5 mm Hg)
Assay min % 98.0%
Acid value max
Refractive index 1.457-1.461
Specific gravity 0.956-0.961
Other requirements
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