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DIRECT BLACK 22

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  Post Date: Nov 24,2022
  Expiry Date: May 23,2023
  Detailed Description: Cas No. :6473-13-8

  CAS Registry Number:

6473-13-8

  Synonyms: ;C.I. Direct Black 22;2-Naphthalenesulfonic acid, 6-(2-(2,4-diaminophenyl)diazenyl)-3-(2-(4-((4-(2-(7-(2-(2,4-diaminophenyl)diazenyl)-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl)phenyl)amino)-3-sulfophenyl)diazenyl)-4-hydroxy-, sodium salt (1:3);C.I. 35435;Direct Black 22;trisodium 6-[(E)-(2,4-diaminophenyl)diazenyl]-3-{(E)-[4-({4-[(E)-{7-[(E)-(2,4-diaminophenyl)diazenyl]-1-hydroxy-3-sulfonatonaphthalen-2-yl}diazenyl]phenyl}amino)-3-sulfonatophenyl]diazenyl}-4-hydroxynaphthalene-2-sulfonate;
  Molecular Formula: C44H32N13Na3O11S3
  Molecular Weight: 1083.9697
  Molecular Structure: 6473-13-8 Direct Black 22
  Safety Description: S24/25:Avoid contact with skin and eyes.;

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