Synonyms: 5b-Pregnane-11,20-dione, 3a,17,21-trihydroxy-, 21-acetate(6CI,7CI,8CI); 3a,17,21-Trihydroxy-5b-pregnane-11,20-dione 21-acetate;5b-Pregnan-3a,17a,21-triol-11,20-dion-21-acetate; L 510844-0; NSC11575; NSC 87520; Tetrahydrocortisone 21-acetate