1-((2-Pyridylmethylene)amino)-3-hydroxyguanidine tosylate 85894-16-2 Hydrazinecarboximidamide, N-hydroxy-2-(2-pyridinylmethylene)-, mono(4- methylbenzenesulfonate) (salt) N-Hydroxy-2-(2-pyridinylmethylene)hydrazinecarboximidamide tosylate NSC 355188