英文别名Prednisone impurity D; Prednisone EP Impurity D; Deltacortinene; Pregna-1,4,9(11)-triene-3,20-dione, 17,21-dihydroxy-; (8S,10S,13S,14S,17R)-17-Hydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,10,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one; 1,9-Didehydro Substance ‘S’; Prednisone impurity D [EP]; PREDNISONE IMPURITY D [EP IMPURITY]; PREDNISONE IMPURITY D (EP IMPURITY); EP Prednisone Impurity D; 17a,21-dihydroxy-pregna-1,4,9(11)-triene-3,20-dione; 17α,21-Dihydroxy-1,4,9(11)-pregnatriendion-(3,20); 17α,21-Dihydroxypregna-1,4,9(11)-trien-3,20-dion; Pregna-1,4,9(11)-trien-17α,21-diol-3,20-dion 
