2.APIs and intermediates Edoxaban impurity A,CAS#1210348-34-7 Name tert-Butyl [(1R,2S,5S)-2-amino-5-[(dimethylamino)carbonyl]cyclohexyl]carbamate oxalate Molecular Structure Molecular Formula C14H27N3O3.C2H2O4 Molecular Weight 375.42 CAS Registry Number 1210348-34-7