InChI=1S/C21H17N9O2S/c1-27-11-16(7-24-27)14-3-4-20-23-10-21(29(20)13-14)33(31,32)30-19-5-15(6-22-18(19)9-26-30)17-8-25-28(2)12-17/h3-13H,1-2H3