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Online Edition: "Specifications for Flavourings"

Flavouring 4-(Methylthio)-4-methyl-2-pentanone
Latest JECFA evaluation 2000 (Session 55)
Status of specification Full
Chemical name 4-Methyl-4-(methylthio)-2-pentanone
JECFA number 500
CAS number 23550-40-5
FEMA number 3376
COE number 11551
FLAVIS number
Molecular weight 146.25
Chemical formula C7H14OS
Physical form/odour
Solubility in ethanol
Boiling point (°C) 84° (12 mm Hg); 78° (15 mm Hg)
Assay min % 99%
Acid value max
Refractive index 1.475-1.485
Specific gravity 0.964
Other requirements
ID Test MS