Food safety and quality: details

Flavouring	Sodium 4-(methylthio)-2-oxobutanoate
Synonym(s)
Latest JECFA evaluation	1999 (Session 53)
Status of specification	Full
Information required
Chemical name	Sodium 4-(methylthio)-2-oxobutanoate
JECFA number	501
CAS number	51828-97-8
FEMA number	3881
COE number
FLAVIS number
Molecular weight	170.16
Chemical formula	C5H7O3S
Physical form/odour	white, free-flowing powder
Solubility	soluble in water and white petrolatum
Solubility in ethanol
Boiling point (°C)	483°
Assay min %	99.5%
Acid value max
Refractive index
Specific gravity
Other requirements
ID Test	CNMR, HNMR
Spectrum