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Online Edition: "Specifications for Flavourings"

Flavouring 5-Hydroxy-2-decenoic acid delta-lactone
Synonym(s) 2-Decene-1,5-lactone
Latest JECFA evaluation 1998 (Session 51)
Status of specification Full
Chemical name 2-Decen-5-olide;6-Pentyl-5,6-dihydro-2-pyrone
JECFA number 246
CAS number 51154-96-2
FEMA number 3744
COE number
FLAVIS number
Molecular weight 168.24
Chemical formula C10H16O2
Physical form/odour clear, pale yellow liquid with a sweet, herbaceous odour
Solubility soluble in alcohol and fat; insoluble in water
Solubility in ethanol
Boiling point (°C) 112° (1.4 mm Hg)
Assay min % 95.0%
Acid value max
Refractive index 1.462-1.482
Specific gravity 0.947-0.987 (20°/20°)
Other requirements
ID Test IR