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Direct Black 19

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  Post Date: Nov 21,2024
  Expiry Date: May 20,2025
  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: 6428-31-5 Direct Black 19

  Company: jinhua shuanghong chemical co., ltd.     [ China ]          
  Contact: Rujie Zhou
  Tel: +86-579-82781136-812
  Fax: +86-579-82781188
  Email: wm02@shuanghongchem.com
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