ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C17H18N4O/c1-11-13%2819-10-18-11%299-21-8-7-15-16%2817%2821%2922%2912-5-3-4-6-14%2812%2920%2815%292/h3-6%2C10H%2C7-9H2%2C1-2H3%2C%28H%2C18%2C19%29/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C17H18N4O/c1-11-13%2819-10-18-11%299-21-8-7-15-16%2817%2821%2922%2912-5-3-4-6-14%2812%2920%2815%292/h3-6%2C10H%2C7-9H2%2C1-2H3%2C%28H%2C18%2C19%29 could not be loaded.