2,7-Naphthalenedisulfonic acid, 5-[2-[2,4-dihydroxy-3-[2-(2-hydroxy-5-nitrophenyl)diazenyl]phenyl]diazenyl]-4-hydroxy-3-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2)

CAS Registry Number®

6487-04-3

CAS Name

2,7-Naphthalenedisulfonic acid, 5-[2-[2,4-dihydroxy-3-[2-(2-hydroxy-5-nitrophenyl)diazenyl]phenyl]diazenyl]-4-hydroxy-3-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2)

Molecular Formula

C28H18N8O14S2.2Na

Cite this Page

2,7-Naphthalenedisulfonic acid, 5-[2-[2,4-dihydroxy-3-[2-(2-hydroxy-5-nitrophenyl)diazenyl]phenyl]diazenyl]-4-hydroxy-3-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2).   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=6487-04-3 (retrieved 2024-11-25) (CAS RN: 6487-04-3).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C28H18N8O14S2.2Na/c37-21-7-5-16(36(43)44)11-19(21)31-33-25-22(38)8-6-18(27(25)39)30-32-20-12-17(51(45,46)47)9-13-10-23(52(48,49)50)26(28(40)24(13)20)34-29-14-1-3-15(4-2-14)35(41)42;;/h1-12,37-40H,(H,45,46,47)(H,48,49,50);;

InChIKey

InChIKey=ILHGCNHZJOQNGQ-UHFFFAOYSA-N

SMILES

N(=NC1=C(O)C(N=NC2=CC(N(=O)=O)=CC=C2O)=C(O)C=C1)C=3C4=C(C=C(S(=O)(=O)O)C(N=NC5=CC=C(N(=O)=O)C=C5)=C4O)C=C(S(=O)(=O)O)C3.[Na]

Canonical SMILES

[Na].O=N(=O)C1=CC=C(N=NC2=C(O)C3=C(N=NC4=CC=C(O)C(N=NC5=CC(=CC=C5O)N(=O)=O)=C4O)C=C(C=C3C=C2S(=O)(=O)O)S(=O)(=O)O)C=C1

Other Names for this Substance

  • 2,7-Naphthalenedisulfonic acid, 5-[2-[2,4-dihydroxy-3-[2-(2-hydroxy-5-nitrophenyl)diazenyl]phenyl]diazenyl]-4-hydroxy-3-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2)
  • C.I. Acid Brown 121, disodium salt
  • 2,7-Naphthalenedisulfonic acid, 5-[[2,4-dihydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]phenyl]azo]-4-hydroxy-3-[(4-nitrophenyl)azo]-, disodium salt
  • C.I. 33520
  • Corium Acid Dark Brown MG

View All

CAS INSIGHTSTM
Hourglass and a clock