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Flavouring	(Z)-3-Hexenyl (E)-2-butenoate
Synonym(s)	(Z)-3-Hexenyl crotonate Pipyl crotonate
Latest JECFA evaluation	2003 (Session 61)
Status of specification	Full
Chemical name	(Z)-3-Hexenyl (E)-2-butenoate
JECFA number	1276
CAS number	65405-80-3
FEMA number	3982
COE number	-
FLAVIS number	09.566
Molecular weight	168.23
Chemical formula	C₁₀H₁₆O₂
Physical form/odour	Colourless liquid; green, vegetable-like aroma
Solubility	insoluble in water; soluble in oils
Solubility in ethanol	soluble
Boiling point (°C)	218-219° (734 mm Hg)
Assay min %	97
Acid value max	1
Refractive index	1.427-1.437
Specific gravity	0.894-0.904
Other requirements	-
ID Test	CNMR HNMR IR MS
Spectrum	http://www.fao.org/ag/agn/jecfa-flav/img/img/1276-cnmr.gif http://www.fao.org/ag/agn/jecfa-flav/img/img/1276-hnmr.gif http://www.fao.org/ag/agn/jecfa-flav/img/img/1276-ir.gif http://www.fao.org/ag/agn/jecfa-flav/img/img/1276-ms.gif

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