InChI=1/C20H15N5/c1-13-9-15-10-17(7-8-18(15)23-13)24-20-22-12-16(11-21)19(25-20)14-5-3-2-4-6-14/h2-10,12,23H,1H3,(H,22,24,25)/f/h24H 5E8BDAEF18C3FFCC