CAS号: 912-38-9 英文名称: 9,11β-Epoxy-17-hydroxy-16β-methyl-3,20-dioxo-9β-pregna-1,4-diene-21-yl Acetate 英文同义词: Betamethasone Impurity 18;Betamethasone Acetate EP Impurity D;Betamethasone Impurity 21（Betamethasone Acetate EP Impurity D）;Betamethasone Impurity 18 (Desoximetasone Beta Methyl Epoxide 21-Acetate);9,11-Epoxy-17,21-dihydroxy-16-methylpregna-1,4-diene-3,20-dione 21-acetate;21-Acetyloxy-9β,11β-epoxy-17-hydroxy-16β-methylpregna-1,4-diene-3,20-dione;(9β)-9,11β-Epoxy-16β-methyl-17,21-dihydroxypregna-1,4-diene-3,20-dione 21-acetate;beta,11beta-Epoxy-17,21-dihydroxy-16beta-methylpregna-1,4-diene-3,20-dione 21-acetate;9beta,11beta-epoxy-17,21-dihydroxy-16beta-methylpregna-1,4-diene-3,20-dione 21-acetate;Betamethasone Acetate impurity 2/Betamethasone Acetate EP Impurity D/9β,11β-Epoxy-17,21-dihydroxy-16β-methylpregna-1,4-diene-3,20-dione 21-Acetate 中文名称: 9,11β-环氧-17-羟基-16β-甲基-3,20-二氧-9β-孕烷-1,4-二烯-21-乙酸酯 中文同义词: 倍他米松杂质18;倍他米松杂质28;醋酸倍他米松EP杂质D;醋酸倍他米松杂质D(EP);9Β,11Β-环氧-16Β-甲基孕甾-1,4-二烯-17Α,20-二醇-3,20-二酮-21-醋酸酯 分子式: C24H30O6 分子量: 414.4914 海关编码 : 2937290000