Synonyms: 5b-Pregnan-20-one, 3a,21-dihydroxy- (8CI);Corticosterone, 11-deoxytetrahydro- (6CI); Corticosterone, deoxytetrahydro- (7CI);21-Hydroxypregnanolone; 3a,21-Dihydroxy-5b-pregnan-20-one; 3a,5b-Tetrahydrodeoxycorticosterone; 5b-Pregnan-3a,21-diol-20-one; 5b-Pregnane-3a,21-diol-20-one;Deoxytetrahydrocorticosterone; Tetrahydro DOC;Tetrahydro-11-deoxycorticosterone; Tetrahydrodeoxycorticosterone