ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C20H11N3O2/c24-19-16-11-8-21-13-7-3-5-10(14(11)13)18-15(17(16)20(25)23-19)9-4-1-2-6-12(9)22-18/h1-8,21-22H,(H,23,24,25)/file?format=sdf&get3d=True  -- InChI=1S/C20H11N3O2/c24-19-16-11-8-21-13-7-3-5-10(14(11)13)18-15(17(16)20(25)23-19)9-4-1-2-6-12(9)22-18/h1-8,21-22H,(H,23,24,25) could not be loaded.