Direct Black 51

CAS Registry Number®

34977-63-4

CAS Name

Direct Black 51

Molecular Formula

C27H19N5O7S.2Na

Cite this Page

Direct Black 51.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=34977-63-4 (retrieved 2024-11-06) (CAS RN: 34977-63-4).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

Other Names for this Substance

  • Benzoic acid, 3(or 5)-[2-[4-[2-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl]-1-naphthalenyl]diazenyl]-2-hydroxy-, sodium salt (1:2)
  • C.I. Direct Black 51
  • Benzoic acid, 3(or 5)-[[4-[(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]-2-hydroxy-, disodium salt
  • Diamine Fast Grey BN
  • Saturn Black B

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Deleted or Replaced CAS Registry Numbers

8012-07-5, 33340-32-8, 69071-39-2, 827598-97-0

CAS INSIGHTSTM
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