51984-21-5 Butanoic acid, 6-[[(aminothioxomethyl)hydrazone]methyl]-3-pyridinyl ester Butanoic acid, 6-[[(aminothioxomethyl)hydrazono]methyl]-3-pyridinyl ester Hydrazinecarbothioamide, 2-[(5-butoxy-2-pyridinyl)methylene]- NSC185050