2,2'-bipyrimidine, 4,4'-bis(chloromethyl)-6,6'-dimethyl- 4,4'-bis(chloromethyl)-6,6'-dimethyl-2,2'-bipyrimidine InChI=1/C12H12Cl2N4/c1-7-3-9(5-13)17-11(15-7)12-16-8(2)4-10(6-14)18-12/h3-4H,5-6H2,1-2H