英文别名N-(5-(4-bromophenyl)-6-(2-hydroxyethoxy)pyrimidin-4-yl)propane-1-sulfamide; N-[5-(4-Bromphenyl)-6-(2-hydroxyethoxy)pyrimidin-4-yl]-N'-propylsulfamid; Macitentan Ethylene hydroxy Impurity; Propylsulfamic acid-[5-(4-bromophenyl)-6-(2-hydroxyethoxy)-pyrimidin-4-yl]-amide