6-Nitro-4-amino-phenol-sulfonsaeure-(2), 5-amino-2-hydroxy-3-nitro-benzenesulfonic acid, EINECS 228-843-1, 5-Amino-2-hydroxy-3-nitro-benzolsulfonsaeure, Metanilicacid,6-hydroxy-5-nitro-(8CI), 5-Amino-2-hydroxy-3-nitrobenzenesulphonic acid, Benzenesulfonic acid,5-amino-2-hydroxy-3-nitro