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Online Edition: "Specifications for Flavourings"

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Flavouring	2-Propionyl-2-thiazoline
Synonym(s)	1-(4,5-Dihydro-1,3-thiazol-2-yl)-1-propanone
Latest JECFA evaluation	2007 (Session 68)
Status of specification	Full
Chemical name	2-Propionyl-2-thiazoline
JECFA number	1760
CAS number	29926-42-9
FEMA number	4064
COE number	-
FLAVIS number	15.128
Molecular weight	143.21
Chemical formula	C₆H₉NOS
Physical form/odour	Colourless to light yllow liquid; Meaty, nutty, cooked, brown roasted aroma
Solubility	Soluble in heptane; insoluble in water
Solubility in ethanol	Soluble
Boiling point (°C)	237-241°
Assay min %	99%
Acid value max	-
Refractive index	1.514-1.517
Specific gravity	1.230-1.245
Other requirements	-
ID Test	HNMR IR MS
Spectrum	http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1760-hnmr.gif http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1760-ir.gif http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1760-ms.gif

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