C.I. Direct Red 81

• Post Date:

  Dec 24,2025

• Expiry Date:

  Jun 22,2026

• Detailed Description:

  Cas No. :25188-42-5

• CAS Registry Number:

  25188-42-5

• Synonyms:

  ;C.I. Direct Red 81;7-Benzamido-4-hydroxy-3-((4-((4-sulphophenyl)azo)phenyl)azo)naphthalene-2-sulphonic acid;(3E)-7-(benzoylamino)-4-oxo-3-(2-{4-[(E)-(4-sulfophenyl)diazenyl]phenyl}hydrazinylidene)-3,4-dihydronaphthalene-2-sulfonic acid;7-benzamido-4-hydroxy-3-[4-(4-sulfophenyl)azophenyl]azo-naphthalene-2-sulfonic acid;

• Molecular Formula:

  C₂₉H₂₁N₅O₈S₂

• Molecular Weight:

  631.6357

• Molecular Structure:

  

• Company:

  jinhua shuanghong chemical co., ltd.     [ China ]        

• Contact:

  Rujie Zhou

• Tel:

  +86-579-82781136-812

• Fax:

  +86-579-82781188

• Email:

  wm02@shuanghongchem.com