4-08-00-02182 (Beilstein Handbook Reference) 6-beta-Hydroxypregn-4-ene-3,20-dione 6-beta-Hydroxyprogesterone 604-19-3 BRN 3218996 Pregn-4-ene-3,20-dione, 6-beta-hydroxy- Pregn-4-ene-3,20-dione, 6-hydroxy-, (6-beta)- (9CI) U 27605