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Online Edition: "Specifications for Flavourings"

Flavouring 5-Hydroxy-4-octanone
Synonym(s) 5-Octanol-4-one;Butyroin
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name 5-Hydroxyoctan-4-one
JECFA number 416
CAS number 496-77-5
FEMA number 2587
COE number 2045
FLAVIS number
Molecular weight 144.21
Chemical formula C8H16O2
Physical form/odour yellowish liquid
Solubility almost insoluble in water; soluble in alcohol
Solubility in ethanol
Boiling point (°C) 182°
Assay min % 95%
Acid value max
Refractive index 1.426-1.432
Specific gravity 0.907-0.923 (20°)
Other requirements
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