ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%28C%29%5BC%40H%5D2%5BC%40%40H%5D%28CC%28C%29%3DCC2%29C3%3DC%28C%3DC%28C%28C%29%28C%29CCCCC%28N4CCOCC4%29%3DO%29C%3DC3O%29O1/file?format=sdf&get3d=True  -- CC1%28C%29%5BC%40H%5D2%5BC%40%40H%5D%28CC%28C%29%3DCC2%29C3%3DC%28C%3DC%28C%28C%29%28C%29CCCCC%28N4CCOCC4%29%3DO%29C%3DC3O%29O1 could not be loaded.