英文名称:Titropium Bromide Ep Impurity A (Sodium Salt); Di-2-Thienylglycolic Acid Sodium Salt; Sodium 2-hydroxy-2,2-di(thiophen-2-yl)acetate; Sodium Dithienylglycolate; Tiotropium Bromide Monohydrate Ep Impurity A As Sodium Salt; Tiotropium Ep Impurity A; Sodium 2-Hydroxy-2,2-Di(Thiophen-2-Yl)Acetate; Tiotropium Bromide Bp Impurity A; Tiotropium Bromide Monohydrate Impurity A As Sodium Salt