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Online Edition: "Specifications for Flavourings"

Flavouring 2-Methylhexanoic acid
Synonym(s) 2-Methylcaproic acid;2-Butylpropionic acid
Latest JECFA evaluation 2001 (Session 57)
Status of specification Full
Chemical name 2-Methylhexanoic acid
JECFA number 265
CAS number 4536-23-6
FEMA number 3191
COE number 582
FLAVIS number
Molecular weight 130.19
Chemical formula C7H14O2
Physical form/odour colourless, oily liquid with a fruity odour
Solubility miscible with alcohol, ether and water
Solubility in ethanol
Boiling point (°C) 105° (5 mm Hg)
Assay min % 95%
Acid value max
Refractive index 1.419-1.422 (20°)
Specific gravity 0.914-0.918 (20°/20°)
Other requirements
ID Test IR