ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C19H15N4.ClH/c1-4-10-16%2811-5-1%2919-20-22%2817-12-6-2-7-13-17%2923%2821-19%2918-14-8-3-9-15-18/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C19H15N4.ClH/c1-4-10-16%2811-5-1%2919-20-22%2817-12-6-2-7-13-17%2923%2821-19%2918-14-8-3-9-15-18 could not be loaded.