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Flavouring	(E)-2-Pentenoic acid
Synonym(s)	-
Latest JECFA evaluation	2008 (Session 69)
Status of specification	Full
Chemical name	(2E)-2-Pentenoic acid
JECFA number	1804
CAS number	13991-37-2
FEMA number	4193
COE number	10163
FLAVIS number	08.107
Molecular weight	100.12
Chemical formula	C₅H₈O₂
Physical form/odour	Colourless liquid; Sour caramellic aroma
Solubility	Slightly soluble in water; soluble in non-polar solvents
Solubility in ethanol	Soluble
Boiling point (°C)	197-199
Assay min %	95
Acid value max	-
Refractive index	1.445-1.454
Specific gravity	0.984-0.991
Other requirements	-
ID Test	HNMR MS
Spectrum	http://www.fao.org/ag/agn/jecfa-flav/img/jecfa69/1804-hnmr.gif http://www.fao.org/ag/agn/jecfa-flav/img/jecfa69/1804-ms.gif

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