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Online Edition: "Specifications for Flavourings"
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Analytical Methods (Volume 4)
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Flavouring
Butyl ethyl disulfide
Synonym(s)
1-Ethyldisulfanyl-butane;3,4-Dithiaoctane
Latest JECFA evaluation
2007 (Session 68)
Status of specification
Full
Information required
Chemical name
Butyl ethyl disulfide
JECFA number
1698
CAS number
63986-03-8
FEMA number
4027
COE number
FLAVIS number
12.254
Molecular weight
150.31
Chemical formula
C6H14S2
Physical form/odour
Clear, colourless or pale yellow liquid; Sulfureous aroma
Solubility
Soluble in non-polar solvents; insoluble in water
Solubility in ethanol
Soluble
Boiling point (°C)
198-202°
Assay min %
90%
Acid value max
Refractive index
1.492-1.502
Specific gravity
0.954-0.964 (20°)
Other requirements
Also contains 2-3% diethyl disulfide and 5-6% dibutyl disulfide
ID Test
CNMR HNMR IR MS
Spectrum