2-[[4-[(5S)-5-[[[(5-?Chloro-?2-?thienyl)carbonyl]amino]methyl]?-2-oxo-3-oxazolidinyl]?phenyl](2-hydroxyethyl)amino]-2-oxo-acetic Acid is a metabolite of Rivaroxaban (R538000) which is an antithrombotic agent. Rivaroxaban is a highly potent and selective, direct FXa inhibitor.