5b-Spirostan-2b,3b,11a-triol, (25R)- (8CI); Metagenin (6CI,7CI);Spiro[8H-naphth[2',1':4,5]indeno[2,1-b]furan-8,2'-[2H]pyran],spirostan-2,3,11-triol deriv.; 5b,25D-Spirostan-2b,3b,11a-diol
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