Benzoicacid, 4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-, ethylester (9CI); Benzoic acid, p-[(3-methyl-5-oxo-1-phenyl-2-pyrazolin-4-yl)azo]-,ethyl ester (8CI); NSC 114439
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