3-Nitro-4-phenoxy-5-sulphamoylbenzoic acid, 3-Nitro-4-phenoxy-5-sulfamyl-benzoesaeure, 3-Nitro-4-oxy-phenylarsinigsaeure-anhydrid, Phenol,4-arsenoso-2-nitro, 4-Arsenoso-2-nitrophenol, 3-Nitro-4-hydroxyphenylarsenous acid, 3-nitro-4-phenoxy-5-sulfamoylbenzoic acid, 3-Nitro-4-phenoxy-5-sulfamoyl-benzoesaeure, 3-nitro-4-phenoxy-5-sulfamylbenzoic acid, 3-nitro-4-phenoxy-5-sulphamylbenzoic acid, 3-Nitro-4-oxy-phenylarsenoxyd