InChI=1/C18H13N3O6/c22-17(9-1-2-12-13(5-9)27-8-26-12)21-20-16-10-6-14-15(25-4-3-24-14)7-11(10)19-18(16)23/h1-2,5-7H,3-4,8H2,(H,21,22)(H,19,20,23)/p+1/fC18H14N3O6/h19-21H/q+1 2631CEE88637F643