1,2-Propanedithiol, sometimes called 1,2-dimercaptopropane, is a thiol with the formula HSCH2CH(SH)CH3. This colorless, intensely odorous liquid is the simplest chiral dithiol. Related dithiols include 1,2-ethanedithiol, 2,3-dimercapto-1-propanesulfonic acid, and 1,3-propanedithiol. It is generated by the addition of H2S to the related episulfide, CH3CHCH2S.

1,2-Propanedithiol
Names
Preferred IUPAC name
Propane-1,2-dithiol[1]
Other names
1,2-Dimercaptopropane
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.011.271 Edit this at Wikidata
UNII
  • InChI=1S/C3H8S2/c1-3(5)2-4/h3-5H,2H2,1H3 checkY
    Key: YGKHJWTVMIMEPQ-UHFFFAOYSA-N checkY
  • InChI=1/C3H8S2/c1-3(5)2-4/h3-5H,2H2,1H3
    Key: YGKHJWTVMIMEPQ-UHFFFAOYAG
  • SCC(S)C
Properties
C3H8S2
Molar mass 108.22 g·mol−1
Boiling point 152 °C (306 °F; 425 K)
Insoluble
Solubility in organic solvents soluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Refractive index = 1.531-1.541

References

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  1. ^ Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 697. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4.
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