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Online Edition: "Specifications for Flavourings"

Flavouring 3,5-Dimethyl-1,2-cyclo-pentanedione
Latest JECFA evaluation 2000 (Session 55)
Status of specification Full
Chemical name 3,5-Dimethylcyclo-pentane-1,2-dione
JECFA number 421
CAS number 13494-07-0
FEMA number 3269
COE number 2235
FLAVIS number
Molecular weight 126.16
Chemical formula C7H10O2
Physical form/odour light yellow to yellowish brown powder with a maple, burnt sugar odour
Solubility insoluble in water
Solubility in ethanol
Boiling point (°C)
Assay min % 98%
Acid value max
Refractive index
Specific gravity 0.5 g/ml at 20°
Other requirements Melting point 87-93°
ID Test MS