ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C15H8N2O3/c18-11-7-12-9%285-6-13%2819%2920-12%2915-14%2811%298-3-1-2-4-10%288%2916-17-15/h1-7%2C17H/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C15H8N2O3/c18-11-7-12-9%285-6-13%2819%2920-12%2915-14%2811%298-3-1-2-4-10%288%2916-17-15/h1-7%2C17H could not be loaded.