4-[2-(4,5-Dihydro-3-Methyl-5-Oxo-1-Phenyl-1H-Pyrazol-4-Yl)Diazenyl]-3-Hydroxy-7-Nitro-1-Naphthalenesulfonic Acid Sodium Salt (1:1)
[CAS# 90377-81-4]

Identification

• Name: 4-[2-(4,5-Dihydro-3-Methyl-5-Oxo-1-Phenyl-1H-Pyrazol-4-Yl)Diazenyl]-3-Hydroxy-7-Nitro-1-Naphthalenesulfonic Acid Sodium Salt (1:1)
• Synonyms: 4-[(4,5-Dihydro-3-Methyl-5-Oxo-1-Phenyl-1H-Pyrazol-4-Yl)Azo]-3-Hydroxy-7-Nitro-1-Naphthalenesulfonic Acid Monosodium Salt; Chrome Red GN-N
• Molecular Formula: C₂₀H₁₄N₅NaO₇S
• Molecular Weight: 491.41
• CAS Registry Number: 90377-81-4
• SMILES: CC1=NN(C(=O)C1/N=N/c1c(O)cc(c2c1ccc(c2)[N+](=O)[O-])S(=O)(=O)[O-])c1ccccc1.[Na+]
• InChI: 1S/C20H15N5O7S.Na/c1-11-18(20(27)24(23-11)12-5-3-2-4-6-12)21-22-19-14-8-7-13(25(28)29)9-15(14)17(10-16(19)26)33(30,31)32;/h2-10,18,26H,1H3,(H,30,31,32);/q;+1/p-1/b22-21+