Direct Black 19

• Post Date:

  Apr 26,2025

• Expiry Date:

  Oct 23,2025

• Detailed Description:

  Cas No. :6428-31-5 We're specialized in producing
  acid dyes, direct dyes, liquid
  dyes, salt free dyes, etc.

• CAS Registry Number:

  6428-31-5

• Synonyms:

  ;C.I. 35255;C.I. Direct Black 19;C.I. Direct Black 19 (VAN);C.I. Direct Black 19, disodium salt;Direct Fast Black G;C.I.Direct Black 19;disodium (3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate;(3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid;Direct Black G;

• Molecular Formula:

  C₃₄H₂₇N₁₃Na₂S₂O₇

• Molecular Weight:

  839.77

• 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