887256-40-8

5-Amino-2-hydroxy-4''-sulfo[1,1''-biphenyl]-3-carboxylic Acid is the free form of 5-Amino-2-hydroxy-4''-sulfo[1,1''-biphenyl]-3-carboxylic Acid Hydrochloride (A629343), which is the hydrochloride salt of 5-Amino-3-(4-sulfonylphenyl)salicyclic Acid Sodium Salt (A629340), an impurity of mesalamine (M258100) that is the active metabolite of Sulfasalazine (S699084). Anti-inflammatory (gastrointestinal).