2-(2,5-dichlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one, Einecs 236-022-4, 1-(2,5-Dichlorophenyl)-3-methyl-5(4H)-pyrazolone, 1-(2',5'-dichlorophenyl)-3-methylpyrazol-5-one, 3H-Pyrazol-3-one,2-(2,5-dichlorophenyl)-2,4-dihydro-5-methyl, 2-(2,5-dichlorophenyl)-2,4-dihydro-5-methyl-3H-pyrazol-3-one, 3-methyl-1-(2',5'-dichlorophenyl)-2-pyrazolin-5-one, 3H-pyrazol-3-one,2-(2,5-dichlorophenyl)-2,4-dihydro-5-met, 2-(2,5-Dichlorophenyl)-5-Methyl-1H-pyrazol-3(2H)-one