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Thianaphthene

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Thianaphthene Basic information
Thianaphthene Chemical Properties
  • Melting point:30-33 °C
  • Boiling point:221-222 °C(lit.)
  • Density 1.149 g/mL at 25 °C(lit.)
  • refractive index 1.6332 (estimate)
  • Flash point:>230 °F
  • storage temp. Room temperature.
  • solubility 0.13g/l
  • form Crystalline Solid
  • color White to pink or yellow
  • Specific Gravity1.149
  • Water Solubility insoluble
  • Merck 14,9303
  • BRN 80580
  • InChIKeyFCEHBMOGCRZNNI-UHFFFAOYSA-N
  • CAS DataBase Reference95-15-8(CAS DataBase Reference)
  • NIST Chemistry ReferenceBenzo[b]thiophene(95-15-8)
  • EPA Substance Registry SystemBenzo[b]thiophene (95-15-8)
Safety Information
MSDS
Thianaphthene Usage And Synthesis
  • Chemical PropertiesWHITE TO RED CRYSTALLINE LOW MELTING SOLID
  • UsesBenzo[b]thiophene has application in organic as well as pharmaceutical industry as a component in the synthesis of Raloxifene, a breast cancer therapeutic, or hydrodesulfurization reactions.
  • Usesmanufacture of pharmaceuticals, thioindigo.
  • Purification Methods1-Benzothiophene has the odour of naphthalene. If the IR spectrum is not very good, then suspend it in a faintly alkaline aqueous solution and steam distil it. Extract the distillate with Et2O, dry the extract (CaCl2), filter, evaporate the solvent and fractionate the residue. The distillate sets solid. The sulfoxide has m 142o, the picrate has m 148-149o (yellow crystals from EtOH) and the styphnate has m 136-137o. [Hansch & Lindwall J Org Chem 10, 381 1945, Meyer & Meyer Chem Ber 52B 1249 1919, Weisgerber & Kruber 53 1551 1920, Iddon & Scrowston Adv Heterocycl Chem 11 177 1970, Beilstein 17/2 V 6.]
Thianaphthene Preparation Products And Raw materials
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