methanesulfonic acid 3,5-dibromo-4-iodophenyl ester

1,3-dibromo-2-iodo-5-methoxybenzene

对硝基苯基甲烷磺酸酯

4-氨基苯酚甲磺酸酯

methanesulfonic acid 4-amino-3,5-dibromophenyl ester