ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C18H21NO3.C8H9NO2/c1-19-8-7-18-11-4-5-13%2820%2917%2818%2922-16-14%2821-2%296-3-10%2815%2816%2918%299-12%2811%2919%3B1-6%2810%299-7-2-4-8%2811%295-3-7/h3%2C6%2C11-12%2C17H%2C4-5%2C7-9H2%2C1-2H3%3B2-5%2C11H%2C1H3%2C%28H%2C9%2C10%29/t11-%2C12%20%2C17-%2C18-%3B/m0./s1/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C18H21NO3.C8H9NO2/c1-19-8-7-18-11-4-5-13%2820%2917%2818%2922-16-14%2821-2%296-3-10%2815%2816%2918%299-12%2811%2919%3B1-6%2810%299-7-2-4-8%2811%295-3-7/h3%2C6%2C11-12%2C17H%2C4-5%2C7-9H2%2C1-2H3%3B2-5%2C11H%2C1H3%2C%28H%2C9%2C10%29/t11-%2C12%20%2C17-%2C18-%3B/m0./s1 could not be loaded.