107724-20-9 9,11alpha-Epoxy-17-hydroxy-3-oxo-17alpha-pregn-4-ene-7alpha,21-dicarboxylic acid, gamma-lactone, methyl ester Cgp 30083 Eplerenone Eplerenone [USAN] Epoxymexrenone Inspra Pregn-4-ene-7,21-dicarboxylic acid, 9,11-epoxy-17-hydroxy-3-oxo-, gamma-lactone, methyl ester, (7alpha,11alpha,17alpha)- SC-66110