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  • Product Name:   THIOPHENE-3,4-DICARBOXYLIC ACID
  • Synonyms:   3,4-THIOPHENEDICARBOXYLIC ACID;3,4-Thiophenedicarboxylic acid,97%;3,4-Thiophenedicarboxylic acid ,98%;3,4-Dicarboxythiophene
  • CAS No.:   4282-29-5
  • Molecular Formula:   C6H4O4S
  • Molecular Weight :   172.16
  • Specification :   98%
  • Place of Origin:   China
  • Appearance :   
  • Document :   Download

Description of THIOPHENE-3,4-DICARBOXYLIC ACID



THIOPHENE-3,4-DICARBOXYLIC ACID Chemical Properties


Melting point  227-231 °C


Boiling point  272.46°C (rough estimate)


density  1.473 (estimate)


refractive index  1.5500 (estimate)


form  Crystalline Powder


color  Yellow to beige-pinkish or light brown


λmax 240nm(H2O)(lit.)




Safety Information


Hazard Codes  Xi


Risk Statements  36/37/38


Safety Statements  24/25


HazardClass  IRRITANT




THIOPHENE-3,4-DICARBOXYLIC ACID Usage And Synthesis


Chemical Properties yellow to beige-pinkish or light brown crystalline




THIOPHENE-3,4-DICARBOXYLIC ACID Preparation Products And Raw materials


Raw materials N,N-Dimethylformamide-->Ferric chloride-->COPPER(I) CYANIDE-->3,4-Dibromothiophene


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