JECFA

Text-only version



	Transparent process

	The guidelines

	The experts

	Output

	The archive

	Helpdesk

	History

	What's new

	JECFA at WHO

Online Edition: "Specifications for Flavourings"

Español

Online help About the data Analytical Methods (Volume 4)

print-friendly version

Flavouring	Propyl 2-mercaptopropionate
Synonym(s)	-
Latest JECFA evaluation	2007 (Session 68)
Status of specification	Full
Chemical name	Propyl 2-mercaptopropionate
JECFA number	1667
CAS number	19788-50-2
FEMA number	4207
COE number	-
FLAVIS number	-
Molecular weight	148.23
Chemical formula	C₆H₁₂O₂S
Physical form/odour	Colourless liquid; Cooked brown and roasted meat aroma
Solubility	Sparingly soluble in water; soluble in pentane and diethyl ether
Solubility in ethanol	Soluble
Boiling point (°C)	191-194°
Assay min %	97%
Acid value max	-
Refractive index	1.447-1.453
Specific gravity	1.014-1.020
Other requirements	-
ID Test	CNMR HNMR IR MS
Spectrum	http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1667-cnmr.gif http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1667-hnmr.gif http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1667-ir.gif http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1667-ms.gif

FAO Home		Agriculture & Consumer Protection Department		Nutrition & Consumer Protection Division		Contact AGNS

© FAO, 2009