1,3‐Propanedithiol

[109-80-8] C3H8S2 (MW 108.25) InChI = 1S/C3H8S2/c4-2-1-3-5/h4-5H,1-3H2 InChIKey = ZJLMKPKYJBQJNH-UHFFFAOYSA-N (1,3-dithiane formation; reduction (carbonyl to methylene, azide to primary amine, peptidic disulfide to dithiol, demercuration); ketene dithioacetal formation) Physical Data: d20 1.077 g cm−3; bp 170 °C/760 mmHg, 92–98 °C/56 mmHg. Solubility: slightly sol water; miscible with many organic solvents. Form Supplied in: liquid; widely available. Handling, Storage, and Precautions: stench! Use in a fume hood. Can undergo air oxidation to form disulfides. The cyclic disulfide forms a polymeric precipitate in methanol.17a Extraction into aqueous NaOH serves to separate thiols from nonacidic impurities.1f For toxicity data, see 1,2-Ethanedithiol.