?2,2'-Bipyrimidine,4,6-dichloro-5-(2-methoxyphenoxy)- , its cas register number is 150728-13-5. It also can be called?4,6-Dichlor-5-(2-methoxyphenoxy)-2,2'-bipyrimidin ; and 4,6-Dichloro-5-(2-methoxyphenoxy)-2,2'-bipyrimidine .