1. 泼尼松龙杂质(21-氧基-20-磷酸基-11-β-羟基-1,4,17-三烯-3-酮)

泼尼松龙杂质(21-氧基-20-磷酸基-11-β-羟基-1,4,17-三烯-3-酮)

Prednisolone Impurity (21-Oxygroup-20-Phosphoryl-11beta-Hydroxylpregna-1, 4, 17-triene-3-Ketone)