Chrome Red

CAS Registry Number®

3618-63-1

CAS Name

Chrome Red

Molecular Formula

C20H16N4O5S.Na

Cite this Page

Chrome Red.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=3618-63-1 (retrieved 2024-11-22) (CAS RN: 3618-63-1).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C20H16N4O5S.Na/c1-12-18(20(26)24(23-12)13-7-3-2-4-8-13)21-22-19-15-10-6-5-9-14(15)17(11-16(19)25)30(27,28)29;/h2-11,18,25H,1H3,(H,27,28,29);

InChIKey

InChIKey=LQNCZVUOLJAMAW-UHFFFAOYSA-N

SMILES

N(=NC1C(=O)N(N=C1C)C2=CC=CC=C2)C=3C4=C(C(S(=O)(=O)O)=CC3O)C=CC=C4.[Na]

Canonical SMILES

[Na].O=C1N(N=C(C)C1N=NC2=C(O)C=C(C=3C=CC=CC23)S(=O)(=O)O)C=4C=CC=CC4

Other Names for this Substance

  • 1-Naphthalenesulfonic acid, 4-[2-(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)diazenyl]-3-hydroxy-, sodium salt (1:1)
  • C.I. Mordant Red 7, monosodium salt
  • Eriochrome Red B
  • C.I. Mordant Red 7
  • 1-Naphthalenesulfonic acid, 4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-3-hydroxy-, monosodium salt

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Deleted or Replaced CAS Registry Numbers

7247-94-1, 200126-59-6