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Online Edition: "Specifications for Flavourings"

Flavouring bis(Methylthio)methane
Synonym(s) Thioformaldehyde dimethyl acetal;Bis(methyl mercapto) methane;Methylene bis(methyl sulfide);Formaldehyde dimethyl mercaptal;2,4-Dithiapentane;Formaldehyde dimethyl dithioacetal
Latest JECFA evaluation 2000 (Session 55)
Status of specification Full
Chemical name Bis(methylthio)methane
JECFA number 533
CAS number 1618-26-4
FEMA number 3878
COE number
FLAVIS number
Molecular weight 108.22
Chemical formula C3H8S2
Physical form/odour pale yellow, oily liquid with an odour of fresh mustard
Solubility very slightly soluble in water; soluble in alcohols and oils
Solubility in ethanol
Boiling point (°C) 193°
Assay min % 99%
Acid value max
Refractive index 1.530-1.538
Specific gravity 0.959-1.059
Other requirements
ID Test IR