(3-Nitro-phenyl)-[(4-nitro-phenyl)-hydrazono]-acetonitrile

1-Cyano-2-methyl-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid methyl ester

3,6-dimethyl-4-(3-cyano-1-triazeno)pyridazine 1-oxide potassium salt

Amino-(1-benzoyl-4-chloro-1,2,5,6-tetrahydro-pyridin-3-yl)-acetonitrile

2-[N'-(2-Amino-6-chloro-pyrimidin-4-yl)-hydrazino]-2-(4-methoxy-phenyl)-propionitrile