InChI=1S/C24H22N7.Na/c1-2-3-10-22-26-21-9-6-15-25-24(21)31(22)16-17-11-13-18(14-12-17)19-7-4-5-8-20(19)23-27-29-30-28-23;/h4-9,11-15H,2-3,10,16H2,1H3;/q-1;+1