ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C17H20N2S/c1-13%2818%282%293%2912-19-14-8-4-6-10-16%2814%2920-17-11-7-5-9-15%2817%2919/h4-11%2C13H%2C12H2%2C1-3H3/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C17H20N2S/c1-13%2818%282%293%2912-19-14-8-4-6-10-16%2814%2920-17-11-7-5-9-15%2817%2919/h4-11%2C13H%2C12H2%2C1-3H3 could not be loaded.