英文别名Tiotropium EP Impurity D; Tiotropium Bromide Impurity 4(Tiotropium Bromide EP Impurity D); (1R,3S,5S)-2'-hydroxy-2',2'-di(thiophen-2''-yl)acetic acid 8-methyl-8-azabicyclo[3.2.1]oct-6-en-3-yl ester; Tiotropium Bromide EP Impurity D; 2-Thiopheneacetic acid, α-hydroxy-α-2-thienyl-, (3-endo)-8-methyl-8-azabicyclo[3.2.1]oct-6-en-3-yl ester; Tiotropium Impurity 30; Tiotropium Impurity D; (1R,3S,5S)-8-METHYL-8-AZABICYCLO[3.2.1]OCT-6-EN-3-YL-2'-HYDROXY-2',2'-DI(THIOPHEN-2''-YL)ACETATE; Tiotropium Bromide Impurity 4 
