1,2-Propanedithiol

1,2-Propanedithiol

Names
Preferred IUPAC name Propane-1,2-dithiol
Other names 1,2-Dimercaptopropane
Identifiers
CAS Number	814-67-5 checkY
3D model (JSmol)	Interactive image
ChemSpider	55160 checkY
ECHA InfoCard
E number
PubChem CID	61217
UNII	GS64223D79 checkY
CompTox Dashboard (EPA)	{{#property:P3117}}
InChI 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
SMILES SCC(S)C
Properties
Chemical formula	C3H8S2
Molar mass	108.22 g·mol−1
Boiling point	152 °C (306 °F; 425 K)
Solubility in water	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). ☒N verify (what is checkY☒N ?) Infobox references

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.

Refractive index = 1.531-1.541