ERROR opening https://cactus.nci.nih.gov/chemical/structure/c1ccccc1C2%28CCCCC2%29C%28%3DO%29OCCN3CCOCC3/file?format=sdf&get3d=True  -- c1ccccc1C2%28CCCCC2%29C%28%3DO%29OCCN3CCOCC3 could not be loaded.