143621-37-8 2-((3-Amino-4-methyl-2-pyridinyl)methylene)hydrazinecabothioamide 3-Amino-4-methylpyridine-2-carboxaldehyde thiosemicarbazone 3-Ampct Hydrazinecabothioamide, 2-((3-amino-4-methyl-2-pyridinyl)methylene)-