ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C15H12N2O/c16-15%2818%2917-13-7-3-1-5-11%2813%299-10-12-6-2-4-8-14%2812%2917/h1-10H%2C%28H2%2C16%2C18%29/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C15H12N2O/c16-15%2818%2917-13-7-3-1-5-11%2813%299-10-12-6-2-4-8-14%2812%2917/h1-10H%2C%28H2%2C16%2C18%29 could not be loaded.