英文别名Dydrogesterone EP Impurity A; Dydrogesterone impurity A; (9S,10S,13R,17S)-17-acetyl-10,13-dimethyl-1,2,9,11,12,15,16,17-octahydrocyclopenta[a]phenanthren-3-one; 9beta,10alpha-Pregna-4,6,8(14)-triene-3,20-dione; Dydrogesterone Impurity 1; Dydrogesterone related compound A 
