ERROR opening https://cactus.nci.nih.gov/chemical/structure/CN%28C%29C1CCC2%3DC%28C1%29C3%3DCC%28%3DCC%28%3DC3N2%29F%29F/file?format=sdf&get3d=True  -- CN%28C%29C1CCC2%3DC%28C1%29C3%3DCC%28%3DCC%28%3DC3N2%29F%29F could not be loaded.