1-(2,4,6-Trichlorophenyl)-3-propeneamido-5-pyrazolone

n-[5-oxo-1-(2,4,6-trichlorophenyl)-2-pyrazolin-3-yl]-acrylamide

N-[4,5-Dihydro-5-oxo-1-(2,4,6-trichlorophenyl)-1H-pyrazol-3-yl]-2-propenamide