Disodium 4-{(E)-[3-(Ethoxycarbonyl)-5-Hydroxy-1-(4-Sulfonatophenyl)-1H-Pyrazol-4-Yl]Diazenyl}-1-Naphthalenesulfonate
[CAS# 15139-76-1]

Identification

• Name: Disodium 4-{(E)-[3-(Ethoxycarbonyl)-5-Hydroxy-1-(4-Sulfonatophenyl)-1H-Pyrazol-4-Yl]Diazenyl}-1-Naphthalenesulfonate
• Synonyms: disodium 3-ethyl 4,5-dihydro-5-oxo-4-[(4-sulphonato-1-naphthyl)azo]-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate; ORANGE B
• Molecular Formula: C₂₂H₁₆N₄Na₂O₉S₂
• Molecular Weight: 590.49
• CAS Registry Number: 15139-76-1
• EINECS: 239-201-5
• SMILES: [Na+].[Na+].[O-]S(=O)(=O)c4ccc(/N=N/c2c(nn(c1ccc(cc1)S([O-])(=O)=O)c2O)C(=O)OCC)c3ccccc34
• InChI: 1S/C22H18N4O9S2.2Na/c1-2-35-22(28)20-19(21(27)26(25-20)13-7-9-14(10-8-13)36(29,30)31)24-23-17-11-12-18(37(32,33)34)16-6-4-3-5-15(16)17;;/h3-12,27H,2H2,1H3,(H,29,30,31)(H,32,33,34);;/q;2*+1/p-2/b24-23+
• InChIKey: LLTKITSFUJSOCC-KPOOZVEVSA-L

Properties

• Refractive index: (Cal.)