英文别名:
Hydroxydithiophen-2-ylacetic acid ethyl ester;Aclidinium Impurity 4;Ethyl 2-hydroxy-2,2-di(thiophen-2-yl)acetate;Ethyl (2,2'-Dithienyl)glycolate;Aclidinium bromide Impurity 4;Tiotropium Bromide Impurity 4;2-Thiopheneacetic acid, α-hydroxy-α-2-thienyl-, ethyl ester