2527-11-9 9.alpha.-BOP 9.alpha.-Bromo-11-ketoprogesterone 9.alpha.-Bromo-11-oxoprogesterone BOP Braxarone Braxoron Braxorone Brolon Broxoron Broxorone NSC15990 Pregn-4-ene-3,11,20-trione, 9-bromo- Progesterone, 9-bromo-11-oxo-