2-hydrazinylpyridine dihydrochloride, 2-HYDRAZINO PYRIDINE HCL, 2-hydrazinopyridine*2HCl, pyrid-2-yl hydrazine dihydrochloride, 2-Pyridone hydrazone HCl, 2-pyridiniohydrazinium dichloride, pyridylhydrazine dihydrochloride, 2-Hydrazinopyridine dihydrochloride, 2-Pyridone hydrazone dihydrochloride