1323-57-5 17,21-Dihydroxymethylpregna-1,4-diene-3,11,20-trione acetate 21-(Acetyloxy)-17-hydroxymethylpregna-1,4-diene-3,11,20-trione Pregna-1,4-diene-3,11,20-trione, 17,21-dihydroxymethyl-, acetate Pregna-1,4-diene-3,11,20-trione, 21-(acetyloxy)-17-hydroxymethyl-