Trisodium 5-Oxo-1-(4-Sulfonatophenyl)-4-(4-Sulfonatophenyl)Diazenyl-4H-Pyrazole-3-Carboxylate
[CAS# 1342-47-8]

Identification

• Name: Trisodium 5-Oxo-1-(4-Sulfonatophenyl)-4-(4-Sulfonatophenyl)Diazenyl-4H-Pyrazole-3-Carboxylate
• Synonyms: Trisodium 5-Oxo-1-(4-Sulfonatophenyl)-4-(4-Sulfonatophenyl)Azo-4H-Pyrazole-3-Carboxylate; Trisodium 5-Keto-1-(4-Sulfonatophenyl)-4-(4-Sulfonatophenyl)Azo-4H-Pyrazole-3-Carboxylate; Tartrazine
• Molecular Formula: C₁₆H₉N₄Na₃O₉S₂
• Molecular Weight: 534.36
• CAS Registry Number: 1342-47-8
• SMILES: C3=C(N2C(C(N=NC1=CC=C([S](=O)(=O)[O-])C=C1)C(=N2)C(=O)[O-])=O)C=CC(=C3)[S](=O)(=O)[O-].[Na+].[Na+].[Na+]
• InChI: 1S/C16H12N4O9S2.3Na/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;;;/h1-8,13H,(H,22,23)(H,24,25,26)(H,27,28,29);;;/q;3*+1/p-3
• InChIKey: UJMBCXLDXJUMFB-UHFFFAOYSA-K