Orange I

CAS Registry Number®

523-44-4

CAS Name

Orange I

Molecular Formula

C16H12N2O4S.Na

Cite this Page

Orange I.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=523-44-4 (retrieved 2024-11-22) (CAS RN: 523-44-4).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    260 °C (decomp)

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C16H12N2O4S.Na/c19-16-10-9-15(13-3-1-2-4-14(13)16)18-17-11-5-7-12(8-6-11)23(20,21)22;/h1-10,19H,(H,20,21,22);

InChIKey

InChIKey=CEQOUNIKCGZOPR-UHFFFAOYSA-N

SMILES

N(=NC1=CC=C(S(=O)(=O)O)C=C1)C=2C3=C(C(O)=CC2)C=CC=C3.[Na]

Canonical SMILES

[Na].O=S(=O)(O)C1=CC=C(N=NC2=CC=C(O)C=3C=CC=CC23)C=C1

Other Names for this Substance

  • Benzenesulfonic acid, 4-[2-(4-hydroxy-1-naphthalenyl)diazenyl]-, sodium salt (1:1)
  • C.I. Acid Orange 20, monosodium salt
  • Benzenesulfonic acid, 4-[(4-hydroxy-1-naphthalenyl)azo]-, monosodium salt
  • C.I. Acid Orange 20
  • C.I. 14600

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Deleted or Replaced CAS Registry Numbers

67621-59-4, 67621-51-6

CAS INSIGHTSTM
Targeted protein degrader structure, illustration