Description Application 4-Methoxybenzhydrazide may be used to synthesize: • N′-[(E)-5-bromo-2-hydroxy-3-methoxybenzylidene]-4-methoxybenzohydrazide monohydrate • 2,5-bis(4-methoxyphenyl)-1,3,4-oxadiazole • hydrazone ligands, which readily forms ruthenium(II) hydrazone complexes via reaction with [RuHCl(CO)(PPh3)3] Packaging 5, 25 g in glass bottle