Synonyms: Glucosiduronicacid, 11b,18-epoxy-18,21-dihydroxy-20-oxo-5b-pregnan-3a-yl, b-D- (8CI);11,13-(Epoxymethano)-13H-cyclopenta[a]phenanthrene, b-D-glucopyranosiduronic acid deriv.; 5b-Pregnan-20-one, 11b,18-epoxy-(3-b-D-glucuronosyloxy)-18,21-dihydroxy-;Pregnane, b-D-glucopyranosiduronic acidderiv.; Tetrahydroaldosterone 3b-glucosiduronic acid