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Online Edition: "Specifications for Flavourings"

Flavouring 2-Pentyl 2-methylpentanoate
Synonym(s) Pentanoic acid, 2-methyl-, 1-methylbutyl ester
Latest JECFA evaluation 2010 (Session 73)
Status of specification Full
Chemical name pentan-2-yl 2-methylpentanoate
JECFA number 2072
CAS number 90397-36-7
FEMA number 4401
COE number
FLAVIS number
Molecular weight 186.29
Chemical formula C11H22O2
Physical form/odour Colourless to yellow liquid; Strong penetrating pear-like aroma
Solubility Practically insoluble or insoluble in water; soluble in fats and oils
Solubility in ethanol Soluble
Boiling point (°C) 76-77° (10 mm Hg)
Assay min % 99%
Acid value max
Refractive index 1.410-1.146
Specific gravity 0.847-0.853 (20°)
Other requirements
ID Test MS