InChI=1/C21H14BrN3O6/c1-10-19-15(9-18(27)24-21(19)28)23-20(10)16(26)6-3-12-4-7-17(31-12)13-5-2-11(25(29)30)8-14(13)22/h2-8,23H,9H2,1H3,(H,24,27,28)/b6-3+/f/h24H 06AB41AC8942080C