2-Pyrazolin-5-one,1-(p-bromophenyl)-3-methyl- (8CI);1-(4-Bromophenyl)-3-methylpyrazol-5-one; 1-(4-bromophenyl)-3-methyl-2-pyrazolin-5-one;2-(4-Bromophenyl)-5-methyl-2,4-dihydropyrazol-3-one
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