Eplerenone Chemical Name: Pregn-4-ene-7,21-dicarboxylic acid 9,11-epoxy-17-hydroxy-3-oxo gamma- lactone methyl ester CAS NO.: 107724-20-9 Molecular Formula: C24H30O6 Molecular weight: 414.49 Appearance: white crystalline powder; slightly soluble in water. Standard: Enterprise Standard