Eriochrome Black T

CAS Registry Number®

1787-61-7
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CAS Name

Eriochrome Black T

Molecular Formula

C20H13N3O7S.Na

Cite this Page

Eriochrome Black T.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/ChemicalDetail.aspx?ref=1787-61-7 (retrieved 2021-09-25) (CAS RN: 1787-61-7).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C20H13N3O7S.Na/c24-17-10-18(31(28,29)30)15-9-12(23(26)27)6-7-14(15)19(17)22-21-16-8-5-11-3-1-2-4-13(11)20(16)25;/h1-10,24-25H,(H,28,29,30);

InChIKey

InChIKey=YUJFCGQWGATJPG-UHFFFAOYSA-N

SMILES

S(=O)(=O)(O)C=1C2=C(C(N=NC3=C(O)C4=C(C=C3)C=CC=C4)=C(O)C1)C=CC(N(=O)=O)=C2.[Na]

Canonical SMILES

[Na].O=N(=O)C1=CC=C2C(N=NC=3C=CC=4C=CC=CC4C3O)=C(O)C=C(C2=C1)S(=O)(=O)O

Other Names for this Substance

  • 1-Naphthalenesulfonic acid, 3-hydroxy-4-[2-(1-hydroxy-2-naphthalenyl)diazenyl]-7-nitro-, sodium salt (1:1)
  • C.I. Mordant Black 11, monosodium salt
  • 1-Naphthalenesulfonic acid, 3-hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-, monosodium salt
  • Chromogene Black ET
  • C.I. 14645

Deleted or Replaced CAS Registry Numbers

37371-16-7, 162163-68-0