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Online Edition: "Specifications for Flavourings"
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| Flavouring |
3-Mercapto-2-butanone |
| Synonym(s) |
-
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| Latest JECFA evaluation |
2000 (Session 55)
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| Status of specification |
Full |
| Chemical name |
3-Mercapto-2-butanone
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| JECFA number |
558 |
| CAS number |
40789-98-8
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| FEMA number |
3298
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| COE number |
11497
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| FLAVIS number |
-
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| Molecular weight |
104.17 |
| Chemical formula |
C4H8OS
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| Physical form/odour |
colourless or pale yellow liquid, becomes cloudy after short storage |
| Solubility |
slightly soluble in water; soluble in alcohol, ether, pyridine and aqueous alkalis |
| Solubility in ethanol |
- |
| Boiling point (°C) |
50 (18 mm Hg) |
| Assay min % |
99 |
| Acid value max |
- |
| Refractive index |
1.469-1.479 |
| Specific gravity |
1.016 (20°) |
| Other requirements |
- |
| ID Test |
IR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img_add8/558.gif
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