Chemical Name: 6-Chloro-1',3-dimethyl-2H-[1,4'-bipyrimidine]-2,2',4,6'(1'H,3H,3'H)-tetraone
Synonym: O-Deshydroxyethyl Bosentan ; 4-(tert-butyl)-N-(5-(2-methoxyphenoxy)-6-oxo-3,6-dihydro-[2,2'-bipyrimidin]-4-yl)benzenesulfonamide
Smile: O=C(C=C(Cl)N1C(NC(N2C)=O)=CC2=O)N(C)C1=O