2527-11-9 9-Bromopregn-4-ene-3,11,20-trione 9-alpha-Bromo-11-ketoprogesterone 9alpha-BOP 9alpha-Bromo-11-ketoprogesterone 9alpha-Bromo-11-oxoprogesterone BOP Braxarone Braxoron Braxorone Brolon Broxoron Broxorone NSC 15990 Pregn-4-ene-3,11,20-trione, 9-alpha-bromo- Pregn-4-ene-3,11,20-trione, 9-bromo- Progesterone, 9-bromo-11-oxo-