英文名称
2-[4-(6-methyl-1H-benzimidazol-2-yl)phenyl]-3H-benzimidazole-5-sulfonic acid;6-methyl-2-phenyl-1H-benzimidazol-3-ium-4-sulfonate;2-[3-(4-methyl-6-sulfo-1H-benzimidazol-2-yl)-5-(6-methyl-4-sulfo-1H-benzimidazol-2-yl)phenyl]-1H-benzimidazole-4,6-disulfonic acid;2-[4-(6-methyl-4-sulfo-1H-benzimidazol-2-yl)phenyl]-1H-benzimidazole-4,6-disulfonic acid;2-phenyl-1H-benzimidazole-4,6-disulfonic acid