ERROR opening https://cactus.nci.nih.gov/chemical/structure/CN%28C%29C%28%3DO%29NC1%3DCC%3DCC%28%3DC1%29C%28F%29%28F%29F/file?format=sdf&get3d=True  -- CN%28C%29C%28%3DO%29NC1%3DCC%3DCC%28%3DC1%29C%28F%29%28F%29F could not be loaded.