BTDA

• Post Date:

  Jul 08,2025

• Expiry Date:

  Jan 04,2026

• Detailed Description:

  Cas No. :2421-28-5 Purity: 98%Min. / 99.5%Min.
  Appearance: Light yellow powder / White powder
  Packing size: 1kg/bag；20kg/drum ; 115kg/drum
  Application: Polyimide foam, epoxy resin material, etc.
  
  For details, please contact the Sales Manager:
  Mr.Ye 18222275652; Ms. Cao 18222265956; Sales department: 022-83726202-8855

• CAS Registry Number:

  2421-28-5

• Synonyms:

  ;BTDA;4,4-Carbonyldiphthalic anhydride;benzophenone-3,3:4,4-tetracarboxylic dianhydride;BTDA;3,3,4,4-Benzophenontetracarbonsaeuredianhydride;1,3-Isobenzofurandione, 5,5'-carbonylbis-;3,3',4,4'-Benzophenonetetracarboxylic acid dianhydride;3,3',4,4'-Tetracarboxybenzophenone dianhydride;3,3',4,4'-benzophenonetetracarboxylicaciddianhydride;3-Isobenzofurandione,5,5'-carbonylbis-1;4,4'-Carbonylbis[phthalic anhydride];4,4'-Diphthalic anhydride ketone;5,5'-carbonylbis-3-isobenzofurandione;5,5'-carbonylbis(2-benzofuran-1,3-dione);3,3',4,4'-Benzophenone tetracarboxylic dianhydride;Benzophenone-3,3',4,4'-tetracarboxylic dianhydride;3,3,4,4-Benzophenonetetracarboxylic dianhydride;

• Molecular Formula:

  C₁₇H₆O₇

• Molecular Weight:

  322.2253

• Molecular Structure:

  

• Hazard Symbols:

   Xi:Irritant;
  

• Risk Codes:

  R36/37:;
  

• Safety Description:

  S25:;
  

• Company:

  CHINATECH (TIANJIN) CHEMICAL Co.,Ltd.     [ China ]          

• Contact:

  Franz Xiao

• Tel:

  18222205756

• Fax:

  022-83726700

• Email:

  sales6@chinatechem.com