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Online Edition: "Specifications for Flavourings"

Flavouring Propyl pyruvate
Synonym(s) Pyruvic acid, propyl ester;Propanoic acid, 2-oxo-, propyl ester
Latest JECFA evaluation 2010 (Session 73)
Status of specification Full
Chemical name propyl 2-oxopropanoate
JECFA number 1946
CAS number 20279-43-0
FEMA number 4484
COE number
FLAVIS number
Molecular weight 130.14
Chemical formula C6H10O3
Physical form/odour Colourless to pale yellow liquid; Sweet carmelling, floral aroma
Solubility Practically insoluble or insoluble in water
Solubility in ethanol Soluble
Boiling point (°C) 168-170°
Assay min % 98%
Acid value max
Refractive index 1.406-1.414
Specific gravity 1.012-1.020 (20°)
Other requirements
ID Test MS