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Direct Black 19

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  Post Date: May 06,2018
  Expiry Date: May 06,2019
  Detailed Description: Cas No. :6428-31-5 Product Name: Direct Fast Black G
C.I. No.: Direct Black 19
CAS NO. 6428-31-5
Chemical Formula: C34H29N13O7S2
Molecular Weight: 795.807 
H.S Code: 32041400

  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: TIANJIN LEVEL CHEMICAL CO.,LTD     [ China ]        
  Contact: CUI
  Tel: 0086-22-26319155
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  Email: dyes@leveldyes.com
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