187538-71-2
→
~62%
54048-10-1
依托孕烯
7370-08-3
11α,17β-Dihydroxy-18a-homo-estr-4-en-3-one
160683-94-3
160683-96-5
160683-95-4
160683-91-0
160683-85-2
160683-93-2
54024-21-4
13-乙基-11-亚甲基-4-雌烯-17-酮
160683-92-1
54024-22-5
去氧孕烯