4-Cyanopyrazole 5-Amino-3-(4-chlorophenyl)-1H-pyrazole-4-carbonitrile 5-Amino-1-(4-chlorophenyl)-3-methyl-1H-pyrazole-4-carbonitrile 5-Amino-1-(3,4-dichlorophenyl)-1H-pyrazole-4-carbonitrile 5-Amino-1-(2,4-dichlorophenyl)-1H-pyrazole-4-carbonitrile 5-Amino-1-(2,4,6-trichlorophenyl)-1H-pyrazole-4-carbonitrile