6, 17-Dimethyl-6-dehydroprogesterone 6,17-Dimethylpregna-4, 6-diene-3,20-dione 6,17-Dimethylpregna-4,6-diene-3,20-dione 977-79-7 AIDS-126709 AIDS126709 AY 62022 AY-62022 Ay 13615S Colpo Colpro Colprone Etogyn Medrogesterone Medrogestone Metrogestone NSC123018 Pregna-4, 6-diene-3,20-dione, 6,17-dimethyl- Prothil