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| Formula | C23H36O2 |
| Molar mass | 344.539 g·mol−1 |
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Dimepregnen (INN,BAN) (developmental code nameST-1411), or6α,16α-dimethylpregn-4-en-3β-ol-20-one, is apregnenesteroid described as anantiestrogen that was synthesized in 1968 and was never marketed.[1][2] It is similar instructure to theprogestins andprogesterone derivativesmelengestrol andanagestone.