Thiophene-2-thiol, contains dimer

• Catalog No.: B22642
• CAS Number: 7774-74-5
• M. F.: C4H4S2
• M. W.: 116.20456
• Purity: 97% as monomer

SYNONYMS

• Title: 2-硫醇噻吩, 含二聚物
• IUPAC name: thiophene-2-thiol
• IUPAC Traditional name: thiophene-2-thiol
• Synonyms: 2-Thienyl mercaptan; 2-Mercaptothiophene

DATABASE IDS

• EC Number: 231-881-1
• Beilstein Number: 104650
• MDL Number: MFCD00051666
• CAS Number: 7774-74-5

PROPERTIES

• Purity: 97% as monomer
• Boiling Point: 62-65°C/12mm
• Density: 1.247
• Refractive Index: 1.6170
• GHS Hazard statements: H301-H332-H315-H319-H335-H227
• European Hazard Symbols: X
• GHS Precautionary statements: P210-P301+P310-P305+P351+P338-P302+P352-P405-P501A
• Risk Statements: 20/22-36/37/38
• Safety Statements: 26-36/37
• Storage Warning: Air & Light Sensitive
• TSCA Listed: 否

REFERENCES

• The nature of the unusual reversible dimerization reaction which occurs on standing has been studied: J. Org. Chem., 54, 3224 (1989); Doklady Akad. Nauk., 305, 624 (1989):
  
• Reaction with 2-bromothiophene in the presence of a Cu catalyst and KOH in DMF gives 2,2'-dithienyl sulfide: Org. Synth. Coll., 6, 558 (1988); with 2-iodothiophene, the product is obtained in high yield in the absence of catalyst, base or solvent: Tetrahedron Lett., 36, 8439 (1995).
• Review of thiophenethiols: Russ. Chem. Rev., 60, 1309 (1991).