1,2-Propanedithiol

{{chembox

| Verifiedfields = changed

| Watchedfields = changed

| verifiedrevid = 477204606

| ImageFile = 1,2-propanedithiol.png

| ImageSize = 120px

| PIN = Propane-1,2-dithiol{{cite book | title = Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book) | publisher = The Royal Society of Chemistry | date = 2014 | location = Cambridge | page = 697 | doi = 10.1039/9781849733069-FP001 | isbn = 978-0-85404-182-4}}

| OtherNames = 1,2-Dimercaptopropane

|Section1={{Chembox Identifiers

| Abbreviations =

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| ChemSpiderID = 55160

| InChIKey = YGKHJWTVMIMEPQ-UHFFFAOYAG

| StdInChI_Ref = {{stdinchicite|correct|chemspider}}

| StdInChI = 1S/C3H8S2/c1-3(5)2-4/h3-5H,2H2,1H3

| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

| StdInChIKey = YGKHJWTVMIMEPQ-UHFFFAOYSA-N

| CASNo_Ref = {{cascite|correct|CAS}}

| CASNo = 814-67-5

| EINECS =

| PubChem = 61217

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = GS64223D79

| SMILES = SCC(S)C

| InChI = 1/C3H8S2/c1-3(5)2-4/h3-5H,2H2,1H3

| RTECS =

| MeSHName =

| ChEBI_Ref = {{ebicite|correct|EBI}}

| ChEBI =

| KEGG_Ref = {{keggcite|correct|kegg}}

| KEGG =

}}

|Section2={{Chembox Properties

| C=3 | H=8 | S=2

| Appearance =

| Density =

| MeltingPt =

| MeltingPt_notes =

| BoilingPtC = 152

| BoilingPt_notes =

| Solubility = Insoluble

| SolubleOther = soluble

| Solvent = organic solvents

| pKa =

| pKb =

}}

|Section7={{Chembox Hazards

| MainHazards =

| NFPA-H =

| NFPA-F =

| NFPA-R =

| NFPA-S =

| FlashPt =

| AutoignitionPt =

| ExploLimits =

| PEL =

}}

}}

1,2-Propanedithiol, sometimes called 1,2-dimercaptopropane, is a thiol with the formula HSCH{{sub|2}}CH(SH)CH{{sub|3}}. 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 H{{sub|2}}S to the related episulfide, CH{{sub|3}}CHCH{{sub|2}}S.

Refractive index = 1.531-1.541