Synonyms: 2-Oxapregna-4,6-diene-3,20-dione,17-(acetyloxy)-6-chloro-15-hydroxy-, (15b)-; 15b-Hydroxyosaterone acetate; 17a-Acetoxy-6-chloro-15b-hydroxy-2-oxa-4,6-pregnadiene-3,20-dione;Cyclopenta[5,6]naphtho[1,2-c]pyran-2(4H)-one, 7-acetyl-7-(acetyloxy)-11-chloro-4a,4b,5,6,6a,7,8,9,9a,9b-decahydro-9-hydroxy-4a,6a-dimethyl-,[4aR-(4aa,4bb,6aa,7b,9a,9ab,9ba)]-; TZP 5294