2,2'-bipyridine, 6,6'-bis(bromomethyl)-4,4'-dinitro- 6,6'-bis(bromomethyl)-4,4'-dinitro-2,2'-bipyridine InChI=1/C12H8Br2N4O4/c13-5-7-1-9(17(19)20)3-11(15-7)12-4-10(18(21)22)2-8(6-14)16-12/h1-4H,5-6H