ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%3D1S/C9H12/c1-7-4-5-8%282%299%283%296-7/h4-6H%2C1-3H3/file?format=sdf&get3d=True  -- InChI%3DInChI%3D1S/C9H12/c1-7-4-5-8%282%299%283%296-7/h4-6H%2C1-3H3 could not be loaded.