InChI=1/C18H13N3/c1-2-4-14(5-3-1)16-8-11-21-17(13-20-18(21)12-16)15-6-9-19-10-7-15/h1-13H/p+1/fC18H14N3/h20H/q+1 C4A9050D9A869228