2-(5-Methyl-3-nitro-pyrazol-1-yl)-propionic acid hydrazide

(5-Methyl-3-nitro-pyrazol-1-yl)-acetic acid hydrazide

4-Bromo-1 H -pyrazole-3-carboxylic acid hydrazide

5-(4-Fluoro-phenyl)-7-trifluoromethyl-4,5,6,7-tetrahydro-pyrazolo[1,5- a ]pyrimidine-2-carboxylic acid hydrazide

4-Chloro-1-ethyl-1 H -pyrazole-3-carboxylic acid hydrazide

5-(4-Chlorophenyl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbohydrazide

(3,5-Dimethyl-pyrazol-1-yl)-acetic acid hydrazide

o -Tolyloxy-acetic acid hydrazide

3-[(2-Chloro-5-methylphenoxy)methyl]benzohydrazide

4-[(2-Chloro-5-methylphenoxy)methyl]benzohydrazide

5-(3-Methyl-4-nitro-phenoxymethyl)furan-2-carbohydrazide