Z-pyridine-2-formyl thiosemicarbazone, Pyridin-2-carbaldehyd-(2,4-dinitro-phenylhydrazon), (Z)-2-Formylpyridin-thiosemicarbazon, 2-pyridylcarbaldehyde (Z)-thiosemicarbazone, pyridine-2-carbaldehyde-(2,4-dinitro-phenylhydrazone), pyridine-2-carbohydrazonamide, 2-pyridincarboxyamidrazone, (1Z,3Z)-1-amino-4-(2-pyridyl)-2,3-diazabuta-1,3-diene-1-thiol, Pyridin-2-aldehyd-2,4-dinitrophenylhydrazon, 2-pyridine-carboxamidrazone, pyridine-2-carbaldehyde-2,4-nitrophenylhydrazone, (pyridine-2-yl)amidrazone, pyridine-2-carboximidehydrazine, Pyridine-2-carboxamidrazone