3alpha,17,21-Trihydroxy-5-beta-pregnane-11,20-dione 3alpha,17,21-Trihydroxypregnane-11,20-dione 53-05-4 5beta-Pregnane-11,20-dione, 3alpha,17,21-trihydroxy- (8CI) Ba 2681 Cortisone, tetrahydro- EINECS 200-161-9 NSC 76984 Pregnane-11,20-dione, 3,17,21-trihydroxy-, (3alpha,5beta)- (9CI) TETRAHYDROCORTISONE THE Tetrahydro E Tetrahydrocompound E Urocortisone