3,20-Allopregnanedione 3,20-Dioxo-5alpha-pregnane 4-07-00-02199 (Beilstein Handbook Reference) 5-alpha-Dihydroprogesterone 5-alpha-Pregnane-3,20-dione 566-65-4 5alpha-Dihydroprogesterone 5alpha-Pregnane-3,20-dione (8CI) 5beta-Pregnane-3,20-dione BRN 2058506 EINECS 209-297-3 NSC 18319 Pregnane-3,20-dione, (5-alpha)- (9CI) Pregnane-3,20-dione, (5alpha)- (9CI)