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CAS号: 3044-42-6 英文名称: 11beta,21-dihydroxypregna-1,4,16-triene-3,20-dione 21-acetate 英文同义词: Budesonide Impurity 3;Budesonide iMpurit 15;Budesonide Impurity 15;Budesonide 1,4,16-Triene Impurity;21-Acetoxy-112-hydroxypregna-1,4,16-triene-3,20-dione;21-acetoxy-11β-hydroxypregna-1,4,16-triene-3,20-dione;21-Acetyloxy-11β-hydroxypregna-1,4,16-triene-3,20-dione;11beta,21-dihydroxypregna-1,4,16-triene-3,20-dione 21-acetate;(11b)-21-(Acetyloxy)-11-hydroxypregna-1,4,16-triene-3,20-dione;Pregna-1,4,16-triene-3,20-dione,21-(acetyloxy)-11-hydroxy-, (11b)- 中文名称: [2-[(8S,9S,10R,11S,13S,14S)-11-羟基-10,13-二甲基-3-氧代-6,7,8,9,11,12,14,15-八氢环戊烯并[A]菲-17-基]-2-氧代乙基]乙酸酯 中文同义词: 布地奈德杂质3;布地奈德杂质15;布地奈德 1,4,14-三烯杂质;[2-[(8S,9S,10R,11S,13S,14S)-11-羟基-10,13-二甲基-3-氧代-;[2-[(8S,9S,10R,11S,13S,14S)-11-羟基-10,13-二甲基-3-氧代-6,7,8,9,11,12,14,15-八氢环戊烯并[A]菲-17-基]-2-氧代乙基]乙酸酯 分子式: C23H28O5 分子量: 384.47 熔点 : 208-209 °C 沸点 : 553.4±50.0 °C(Predicted) 密度 : 1.24±0.1 g/cm3(Predicted) 酸度系数(pKa): 14.30±0.70(Predicted)