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Online Edition: "Specifications for Flavourings"

Flavouring Methylcyclo- pentenolone
Synonym(s) Cyclotene;2-Hydroxy-3-methyl-2-cyclopenten-1-one;Maple lactone
Latest JECFA evaluation 2000 (Session 55)
Status of specification Full
Chemical name 3-Methylcyclopentane-1,2-dione
JECFA number 418
CAS number 80-71-7
FEMA number 2700
COE number 758
FLAVIS number
Molecular weight 112.13
Chemical formula C6H8O2
Physical form/odour white, crystalline powder with a nutty odour, maple-liquorice aroma in dilute solution
Solubility soluble in alcohol and propylene glycol; slightly soluble in most fixed oils and 1 g in 72 ml water
Solubility in ethanol 1 g in 5 ml 90% alcohol
Boiling point (°C) NA
Assay min % 95%
Acid value max
Refractive index NA
Specific gravity NA
Other requirements Heavy Metals: <=0.004%; Melting range 104-108°
ID Test IR