Synonyms: sodium bis[2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzoato(2-)]chromate(1-);Chromate(1-), bis2-4,5-dihydro-3-methyl-5-(oxo-.kappa.O)-1-phenyl-1H-pyrazol-4-ylazo-.kappa.N1benzoato(2-)-.kappa.O-, sodium;[4-[(2-Carboxyphenylazo]-1-phenyl-3-methyl-5-pyrazolone]chromium, sodium;bis[2-[(4,5-Dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzoato] chromate, sodium;Chromate , bis[2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzoato], sodium;Chromate, bis[2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzoato]-, sodium;Chromate(1-), bis[2-[(4,5-dihydro-3-methyl- 5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzoato(2 -)]-, sodium;C.I. Acid Yellow 59;