Acid Yellow 23
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CAS NO:1934-21-0
EC NO:217-699-5
Molecular Formula:C16H9N4Na3O9S2
Molecular Weight:534.3634
Synonyms:;C.I. 640;C.I. 19140;C.I. Acid Yellow 23;C.I. Acid Yellow 23, trisodium salt;C.I. Food Yellow 4;C.I. Acid Yellow 23, trisodium salt (VAN) (8CI);Tartrazine;4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(4-sulfophenyl)azo]-1H-Pyrazole-3-carboxylic acid, trisodium salt;Acid Yellow 23;Dihydro-5-oxo-1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-1H-pyrazole-3-carboxylic acid, trisodium salt;FD&C Yellow No. 5;Filter Yellow;Food Yellow No.4;Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-, trisodium salt;Tartrazine C;Tartrazine C.I.19140;Trisodium 1-(4-sulfonatophenyl)-4-(4-sulfonatophenylazo)-5-pyrazolone-3-carboxylate;Trisodium 1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-1H-pyrazole-3-carboxylate;trisodium (4Z)-5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)hydrazono]-4,5-dihydro-1H-pyrazole-3-carboxylate;trisodium (4E)-5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)hydrazono]-4,5-dihydro-1H-pyrazole-3-carboxylate;trisodium 5-hydroxy-1-(4-sulfonatophenyl)-4-[(E)-(4-sulfonatophenyl)diazenyl]-1H-pyrazole-3-carboxylate;
Molecular Structure:
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