InChI=1/C18H14N4O6/c1-18(10-4-5-11-13(7-10)27-9-26-11)16(23)22(17(24)20-18)8-14-19-15(28-21-14)12-3-2-6-25-12/h2-7H,8-9H2,1H3,(H,20,24)/t18-/m1/s1/f/h20H F2DA0F1BFD3F13A8