(6E)-6-(1-Naphthylhydrazono)-5-Oxo-5,6-Dihydro-1-Naphthalenesulfonic Acid
[CAS# 5858-53-7]

Identification

• Name: (6E)-6-(1-Naphthylhydrazono)-5-Oxo-5,6-Dihydro-1-Naphthalenesulfonic Acid
• Synonyms: C.I. Acid Red 20; Double Ponceau 2R; Double Ponceau 3R
• Molecular Formula: C₂₀H₁₄N₂O₄S
• Molecular Weight: 378.40
• CAS Registry Number: 5858-53-7
• EINECS: 227-493-7
• SMILES: O=S(=O)(O)c1cccc4c1\C=C/C(=N\Nc3c2ccccc2ccc3)C4=O
• InChI: 1S/C20H14N2O4S/c23-20-16-8-4-10-19(27(24,25)26)15(16)11-12-18(20)22-21-17-9-3-6-13-5-1-2-7-14(13)17/h1-12,21H,(H,24,25,26)/b22-18+
• InChIKey: PKZNYSOUSCSDBM-RELWKKBWSA-N

Properties

• Density: 1.43g/cm³ (Cal.)