2-Amino-4-(2-sulfatoethylsulfonyl)benzenesulfonicacid;2-Amino-4-(b-sulfatoethylsulfonyl)benzenesulfonicacid;2-Amino-4-[[2-(sulfooxy)ethyl]sulfonyl]benzenesulfonic acid;5-(b-Sulfatoethylsulfonyl)aniline-2-sulfonicacid;
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