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Online Edition: "Specifications for Flavourings"
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| Flavouring |
1,3-Propanedithiol |
| Synonym(s) |
1,3-Dimercaptopropane
Trimethylene dimercaptan
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| Latest JECFA evaluation |
1999 (Session 53)
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| Status of specification |
Full |
| Chemical name |
1,3-Propanedithiol
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| JECFA number |
535 |
| CAS number |
109-80-8
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| FEMA number |
3588
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| COE number |
11929
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| FLAVIS number |
-
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| Molecular weight |
108.22 |
| Chemical formula |
C3H8S2
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| Physical form/odour |
liquid with odour of sulfur or meat |
| Solubility |
insoluble in water; miscible in fat |
| Solubility in ethanol |
- |
| Boiling point (°C) |
169-173; 105 (100 mm Hg); 63 (15 mm Hg) |
| Assay min % |
98 |
| Acid value max |
- |
| Refractive index |
1.537-1.539 |
| Specific gravity |
1.077-1.078 (d20/4) |
| Other requirements |
- |
| ID Test |
IR, NMR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/535.gif
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