Rivaroxaban Oxo amine amide impurity CAS No. : NAMolecular Formula: C19H18ClN3O5SMolecular Weight : 435.88Chemical Name : 5-chloro-N-(4-(3-oxo-4-morpholino)phenyl)-N-((2-oxooxazolidin-5-yl)methyl)thiophene-2-carboxamide