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Online Edition: "Specifications for Flavourings"

Flavouring 4-Hydroxy-5-methyl-3(2H)-furanone
Synonym(s) 5-Methyl-4-hydroxy-3(2H)-furanone;4-Hydroxy-5-methyl-2,3-dihydrofuran-3-one;5-Methyl-4-hydroxy-2,3-dihydrofuran-3-one
Latest JECFA evaluation 2004 (Session 63)
Status of specification Full
Chemical name 4-Hydroxy-5-methylfuran-3(2H)-one
JECFA number 1450
CAS number 19322-27-1
FEMA number 3635
COE number
FLAVIS number 13.085
Molecular weight 114.1
Chemical formula C5H6O3
Physical form/odour Colourless to white solid; Fruity caramel or burnt pineapple aroma
Solubility Soluble in water; Slightly soluble in fats
Solubility in ethanol Soluble
Boiling point (°C)
Assay min % 97%
Acid value max 4
Refractive index
Specific gravity
Other requirements mp: 126-133°