4-[(4-Hydroxy-1-Naphthyl)Azo]Naphthalenesulphonic Acid
[CAS# 23481-28-9]

Identification

• Name: 4-[(4-Hydroxy-1-Naphthyl)Azo]Naphthalenesulphonic Acid
• Synonyms: 4-[(2E)-2-(4-Oxonaphthalen-1-Ylidene)Hydrazinyl]Naphthalene-1-Sulfonic Acid; 4-[N'-(4-Oxo-1-Naphthylidene)Hydrazino]Naphthalene-1-Sulfonic Acid; 4-[(N'e)-N'-(4-Oxo-1-Naphthylidene)Hydrazino]Naphthalene-1-Sulfonic Acid
• Molecular Formula: C₂₀H₁₄N₂O₄S
• Molecular Weight: 378.40
• CAS Registry Number: 23481-28-9
• EINECS: 245-682-2
• SMILES: C2=C([S](O)(=O)=O)C1=CC=CC=C1C(=C2)N\N=C4\C3=CC=CC=C3C(=O)C=C4
• InChI: 1S/C20H14N2O4S/c23-19-11-9-17(13-5-1-3-7-15(13)19)21-22-18-10-12-20(27(24,25)26)16-8-4-2-6-14(16)18/h1-12,22H,(H,24,25,26)/b21-17+
• InChIKey: QODDEKLJVZEWCN-HEHNFIMWSA-N

Properties

• Density: 1.43g/cm³ (Cal.)