2-Pyridinecarbaldehyde N-(2-pyridinylmethyl)thiosemicarbazone 2-Pyridinecarboxaldehyde, 4-(2-pyridinylmethyl) thiosemicarbazone AIDS-161091 AIDS161091 Hydrazinecarbothioamide, 2-(2-pyridinylmethylene)-N-(2-pyridinyl)methyl- NSC670778