ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C15H8N2O/c18-15-11-4-2-1-3-10(11)13-12-9(5-7-16-13)6-8-17-14(12)15/h1-8H/file?format=sdf&get3d=True  -- InChI=1S/C15H8N2O/c18-15-11-4-2-1-3-10(11)13-12-9(5-7-16-13)6-8-17-14(12)15/h1-8H could not be loaded.