1-Naphthalenesulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-7-nitro-, sodium salt (1:1)
CAS Registry Number®
3618-58-4
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CAS Name
1-Naphthalenesulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-7-nitro-, sodium salt (1:1)Molecular Formula
C20H13N3O7S.NaCite this Page
1-Naphthalenesulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-7-nitro-, sodium salt (1:1). CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. http://commonchemistry.cas.org/detail?cas_rn=3618-58-4 (retrieved ) (CAS RN: 3618-58-4). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).Other Names and Identifiers
InChI
InChI=1S/C20H13N3O7S.Na/c24-16-8-5-11-3-1-2-4-13(11)19(16)21-22-20-14-7-6-12(23(26)27)9-15(14)18(10-17(20)25)31(28,29)30;/h1-10,24-25H,(H,28,29,30);
InChIKey
InChIKey=XNKRHNQHWZEAPV-UHFFFAOYSA-N
SMILES
S(=O)(=O)(O)C=1C2=C(C(N=NC=3C4=C(C=CC3O)C=CC=C4)=C(O)C1)C=CC(N(=O)=O)=C2.[Na]
Canonical SMILES
[Na].O=N(=O)C1=CC=C2C(N=NC3=C(O)C=CC=4C=CC=CC43)=C(O)C=C(C2=C1)S(=O)(=O)O
Other Names for this Substance
- 1-Naphthalenesulfonic acid, 3-hydroxy-4-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-7-nitro-, sodium salt (1:1)
- Eriochrome Black A
- 1-Naphthalenesulfonic acid, 3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-, monosodium salt
- C.I. Mordant Black 1
- C.I. 15710
Deleted or Replaced CAS Registry Numbers
12237-68-2, 40858-61-5
