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Online Edition: "Specifications for Flavourings"
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| Flavouring |
S-Isopropyl 3-methylbut-2-enethioate |
| Synonym(s) |
S-Isopropyl 3-methylthiocrotonate
S-Isopropyl thiosenecioate
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| Latest JECFA evaluation |
2007 (Session 68)
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| Status of specification |
Full |
| Chemical name |
S-Isopropyl 3-methylbut-2-enethioate
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| JECFA number |
1679 |
| CAS number |
34365-79-2
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| FEMA number |
4260
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| COE number |
-
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| FLAVIS number |
12.134
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| Molecular weight |
158.26 |
| Chemical formula |
C8H14OS
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| Physical form/odour |
Colourless to yellowish liquid; Fruity, onion aroma |
| Solubility |
Practically insoluble to insoluble in water |
| Solubility in ethanol |
Soluble |
| Boiling point (°C) |
235-236° |
| Assay min % |
95% |
| Acid value max |
- |
| Refractive index |
1.486-1.492 |
| Specific gravity |
1.006-1.012 |
| Other requirements |
- |
| ID Test |
HNMR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/jecfa68/1679-hnmr.gif
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