Thiolactic acid
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| Names | |
|---|---|
| Preferred IUPAC name
2-Sulfanylpropanoic acid | |
| Other names
2-Mercaptopropanoic acid
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| Identifiers | |
3D model (JSmol)
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| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.001.097 |
| EC Number |
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PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| C3H6O2S | |
| Molar mass | 106.14 g·mol−1 |
| Density | 1.22 g/cm3 |
| Melting point | 10 °C (50 °F; 283 K) |
| Related compounds | |
Related compounds
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lactic acid, thioglycolic acid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Thiolactic acid is the organosulfur compound with the formula CH3CH(SH)CO2H. The molecule contains both carboxylic acid and thiol functional groups. It is structurally related to lactic acid by the interchange of SH for OH. It is a colorless oil.
Thiolactic acid was once widely used in hair permanent waving formulations, but has been displaced by formulations based on thioglycolic acid. Instead of using the acid itself, its salts are used. It is now mainly used for depilation.[1]
See also
References
- ^ T. Clausen (2006). "Hair Preparations". Ullmann’s Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a12_571.pub2. ISBN 3527306730.