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Online Edition: "Specifications for Flavourings"

Flavouring 5-Pentyl-3H-furan-2-one
Synonym(s) 4-Hydroxy-3-nonenoic acid lactone;5-Amyl-3H-furan-2-one;5-(1-Pentyl)-3H-furan-2-one;2(3H)-Furanone, 5-pentyl-
Latest JECFA evaluation 2010 (Session 73)
Status of specification Full
Chemical name 5-pentylfuran-2(3H)-one
JECFA number 1989
CAS number 51352-68-2
FEMA number 4323
COE number
FLAVIS number
Molecular weight 154.21
Chemical formula C9H14O2
Physical form/odour Clear colourless or pale yellow liquid; Tropical fruit aroma with milky dairy notes
Solubility Sparingly soluble in water; soluble in non-polar solvents
Solubility in ethanol Sparingly soluble
Boiling point (°C) 73-74° (1.2 mm Hg)
Assay min % 95%
Acid value max
Refractive index 1.447-1.459
Specific gravity 0.970-0.980
Other requirements