ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C15H8N2O3/c18-11-7-12-9(5-6-13(19)20-12)15-14(11)8-3-1-2-4-10(8)16-17-15/h1-7,17H/file?format=sdf&get3d=True  -- InChI=1S/C15H8N2O3/c18-11-7-12-9(5-6-13(19)20-12)15-14(11)8-3-1-2-4-10(8)16-17-15/h1-7,17H could not be loaded.