2-pyrazinecarbonitrile, 6-bromo-3-(methylamino)- 6-bromo-3-(methylamino)pyrazine-2-carbonitrile InChI=1/C6H5BrN4/c1-9-6-4(2-8)11-5(7)3-10-6/h3H,1H3,(H,9,10