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Online Edition: "Specifications for Flavourings"

Flavouring 2-Undecanone
Synonym(s) Methyl nonyl ketone
Latest JECFA evaluation 1998 (Session 51)
Status of specification Full
Chemical name Undecan-2-one
JECFA number 296
CAS number 112-12-9
FEMA number 3093
COE number 150
FLAVIS number
Molecular weight 170.3
Chemical formula C11H22O
Physical form/odour colourless to pale yellow liquid with a citrus, fatty, rue-like odour
Solubility soluble in alcohol and oil; insoluble in water
Solubility in ethanol 1 ml in 1 ml 95% alcohol
Boiling point (°C) 231-232°
Assay min % 96.0%
Acid value max 5
Refractive index 1.428-1.432
Specific gravity 0.822 -0.826
Other requirements
ID Test IR