Thiolactic acid

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Thiolactic acid
File:Thiolactic acid.svg
Names
Preferred IUPAC name
2-Sulfanylpropanoic acid
Other names
2-Mercaptopropanoic acid
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value). Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value).Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).
EC Number
  • 201-206-5
E number Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value).
UNII
  • {{#property:P3117}}Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).
  • InChI=1S/C3H6O2S/c1-2(6)3(4)5/h2,6H,1H3,(H,4,5)
    Key: PMNLUUOXGOOLSP-UHFFFAOYSA-N
  • SC(C)C(O)=O
Properties
CH3CH(SH)CO2H
Molar mass 106.14 g·mol−1
Appearance Colorless oil
Density 1.22 g/cm3
Melting point 10 °C (50 °F; 283 K)
Related compounds
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Thiolactic acid is the organosulfur compound with the formula CH3CH(SH)CO2H. The molecule contains both carboxyl and thiol functional groups, −C(=O)−OH and −SH respectively. 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 (2-sulfanylpropanoates) are used. It is now mainly used for depilation.[1]

References

[edit | edit source]
  1. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).