英文别名Hydrocortisone Impurity 5; Hydrocortisone EP Impurity E; REICHSTEIN'S EPI ''E''; 20alpha-hydroxycortisol; REICHSTEIN'S SUBSTANCE 'EPI' 'E'; 11B,17ALPHA,20ALPHA,21-Tetrahydroxy-4-pregnen-3-one; 4-PREGNEN-11BETA,17ALPHA,20ALPHA,21-TETROL-3-ONE; 4-pregnene-11B,17A,20A,21-tetrol-3-one; 11β,17,21-Trihydroxypregna-4,6-diene-3,20-dione; Hydrocortisone impurity E (EP); Hydrocortisone EP IMP E; Pregna-4,6-diene-3,20-dione, 11,17,21-trihydroxy-, (11β)- (9CI) 
