ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C19H14N4/c1-3-14-10-16-5-7-18%2822-16%2919-8-6-17%2823-19%2911-15-4-2-13%2821-15%299-12%281%2920-14/h1-11%2C20-22H/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C19H14N4/c1-3-14-10-16-5-7-18%2822-16%2919-8-6-17%2823-19%2911-15-4-2-13%2821-15%299-12%281%2920-14/h1-11%2C20-22H could not be loaded.