Acid yellow 23, tetramethylammonium salt
[CAS# 131013-81-5]

Identification

• Name: Acid yellow 23, tetramethylammonium salt
• Synonyms: 5-Oxo-1-(4-Sulfophenyl)-4-(4-Sulfophenyl)Azo-4H-Pyrazole-3-Carboxylic Acid; Tetramethylammonium; 5-Keto-1-(4-Sulfophenyl)-4-(4-Sulfophenyl)Azo-4H-Pyrazole-3-Carboxylic Acid; Tetramethylammonium; Prism Yellow
• Molecular Formula: C₂₈H₄₈N₇O₉S₂
• Molecular Weight: 690.85
• CAS Registry Number: 131013-81-5
• SMILES: C3=C(N2N=C(C(N=NC1=CC=C([S](O)(=O)=O)C=C1)C2=O)C(O)=O)C=CC(=C3)[S](O)(=O)=O.C[N+](C)(C)C.C[N+](C)(C)C.C[N+](C)(C)C
• InChI: 1S/C16H12N4O9S2.3C4H12N/c21-15-13(18-17-9-1-5-11(6-2-9)30(24,25)26)14(16(22)23)19-20(15)10-3-7-12(8-4-10)31(27,28)29;3*1-5(2,3)4/h1-8,13H,(H,22,23)(H,24,25,26)(H,27,28,29);3*1-4H3/q;3*+1
• InChIKey: WPYDLALKWDHDQN-UHFFFAOYSA-N