4-methylbenzenesulfonic acid,1-oxo-2-(1H-pyridin-2-ylidenemethylamino)guanidine

1-hydroxy-2-[(E)-(3-methylthiophen-2-yl)methylideneamino]guanidine,4-methylbenzenesulfonic acid

1-hydroxy-2-[(E)-(3-iodophenyl)methylideneamino]guanidine,4-methylbenzenesulfonic acid

2-[(E)-(3-hexoxyphenyl)methylideneamino]-1-hydroxyguanidine,4-methylbenzenesulfonic acid

2-[(E)-(3-butoxyphenyl)methylideneamino]-1-hydroxyguanidine,4-methylbenzenesulfonic acid