ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C20H19N3.ClH/c1-13-12-16%286-11-19%2813%2923%2920%2814-2-7-17%2821%298-3-14%2915-4-9-18%2822%2910-5-15/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C20H19N3.ClH/c1-13-12-16%286-11-19%2813%2923%2920%2814-2-7-17%2821%298-3-14%2915-4-9-18%2822%2910-5-15 could not be loaded.