Standards; Pharmaceutical/API Drug Impurities/Metabolites;
应用:
4-(tert-butyl)-N-(6-(2-(2-hydroxyethoxy)ethoxy)-5-(2-methoxyphenoxy)-[2,2'-bipyrimidin]-4-yl)benzenesulfonamide is an impurity of bosentan (B675900), a mixed endothelin receptor antagonist.