InChI=1/C20H16N6O/c21-19(27)13-4-1-5-14(12-13)24-20-23-11-9-18(26-20)25-17-8-2-7-16-15(17)6-3-10-22-16/h1-12H,(H2,21,27)(H2,23,24,25,26)/f/h24-25H,21H2 5616D3545E9FFF92