A series of hydrazones were synthesized by condensing substituted hydrazides with appropriate carbonyl compounds. The chemical structures the compounds confirmed infrared, proton nuclear magnetic resonance, carbon-13 mass ((4-chloro-phenylamino)-acetic acid [1-(4-chlorophenyl)-phenyl-methylene]-hydrazide and (2,4-dichloro-phenylamino)-acetic (3-oxo- 1,3-dihydro-indole-2-ylidene)-hydrazide only)...