4-Hydroxy-4-androstene-3,17-dione 4-Hydroxy-delta(sub 4)-androstenedione 4-Hydroxyandrost-4-ene-3,17-dione 4-Hydroxyandrostenedione 4-OH-A 566-48-3 ANDROST-4-ENE-3,17-DIONE, 4-HYDROXY- B, Aromatase inhibitor BRN 1889793 CCRIS 7483 CGP 32349 Formestane Formestane [BAN:INN] NSC 282175