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Triamcinolone Impurity D 9-Chloro TriaMcinolone Acetonide Triamcinolone Acetonide EP Impurity D Triamcinolone Acetonide Impurity 4（Triamcinolone Acetonide EP Impurity D） (11β,16α)-9-Chloro-11,21-dihydroxy-16,17-[(1-Methylethylidene)bis(oxy)]pregna-1,4-diene-3,20-dione (11beta,16alpha)-9-Chloro-11,21-dihydroxy-16,17-[(1-methylethylidene)bis(oxy)]pregna-1,4-diene-3,20-dione Pregna-1,4-diene-3,20-dione, 9-chloro-11,21-dihydroxy-16,17-[(1-methylethylidene)bis(oxy)]-, (11β,16α)- (9CI) (4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS)-4b-Chloro-6b-glycoloyl-5-hydro xy-4a,6a,8,8-tetramethyl-4a,4b,5,6,6a,6b,9a,10,10a,10b,11,12-dode cahydro-2H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-2-one