英文别名Dutasteride Impurity C; Dutasteride EP Impurity C; Dutasteride Impurity 6; Dutasteride EP Imp C; Dutasteride ethyl ester; Ethyl 3-Oxo-4-aza-5a-androst-1-ene-17b-carboxylate; ethyl 3-oxo-4-aza-5alpha-androst-1-ene-17beta-carboxylate; Ethyl (5alpha,17beta)-3-oxo-4-azaandrost-1-ene-17-carboxylate 
