1-(3,7-dimethyl-4H-1,4-benzothiazin-2-yl)ethanone

N-(4-fluorophenyl)-2-oxopropanehydrazonoyl chloride

N-(4-iodophenyl)-2-oxopropanehydrazonoyl chloride

methyl 2-[2-(1-chloro-2-oxopropylidene)hydrazinyl]benzoate

1-(2,4-dimethyl-1,3-thiazol-5-yl)ethanone,hydrochloride