InChI=1/C21H16N6/c22-21-23-10-9-19(25-21)24-16-7-8-18-17(12-16)20(27-26-18)15-6-5-13-3-1-2-4-14(13)11-15/h1-12H,(H,26,27)(H3,22,23,24,25)/f/h24,26H,22H2 E7B1F36C874F8D8C