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Online Edition: "Specifications for Flavourings"
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| Flavouring |
Methyl thiobutyrate |
| Synonym(s) |
Methylthiol n-butyrate
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| Latest JECFA evaluation |
2000 (Session 55)
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| Status of specification |
Full |
| Chemical name |
S-Methyl butanethioate
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| JECFA number |
484 |
| CAS number |
2432-51-1
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| FEMA number |
3310
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| COE number |
2328
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| FLAVIS number |
-
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| Molecular weight |
118.19 |
| Chemical formula |
C5H10OS
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| Physical form/odour |
colourless to pale yellow liquid with putrid, rancid, sour, pungent cabbage odour (powerful sweet cheesy odour in dilute solution) |
| Solubility |
insoluble in water; miscible in diethyl ether |
| Solubility in ethanol |
- |
| Boiling point (°C) |
140-143; 38-40 (12 mm Hg) |
| Assay min % |
98 |
| Acid value max |
1.0 |
| Refractive index |
1.457-1.469 |
| Specific gravity |
0.960-0.975 |
| Other requirements |
- |
| ID Test |
IR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img_add8/484.gif
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