ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C19H15N5O2/c25-24(26)18-13-7-8-15(14-18)19(22-20-16-9-3-1-4-10-16)23-21-17-11-5-2-6-12-17/h1-14,20H/b22-19?,23-21+/file?format=sdf&get3d=True  -- InChI=1S/C19H15N5O2/c25-24(26)18-13-7-8-15(14-18)19(22-20-16-9-3-1-4-10-16)23-21-17-11-5-2-6-12-17/h1-14,20H/b22-19?,23-21+ could not be loaded.