myarsenol

sulfarsphenamine

[Diarsene-1,2-diylbis[(6-hydroxy-3,1-phenylene)imino]]bis(methanesulfonic acid sodium) salt

disodium [2-hydroxy-5-[4-hydroxy-3-(sulfonatomethylamino)phenyl]arsanylidenearsanylanilino]methanesulfonate

disodium [2-hydroxy-5-[4-hydroxy-3-(sulfonatomethylamino)phenyl]arsinylidenearsinyl-anilino]methanesulfonate

disodium [[2-hydroxy-5-[4-hydroxy-3-(sulfonatomethylamino)phenyl]arsanylidenearsanyl-phenyl]amino]methanesulfonate