ERROR opening https://cactus.nci.nih.gov/chemical/structure/CN1C%3DC%28C%28%3DO%29C2%3DC1C%3DC%28C%3DC2%29F%29S%28%3DO%29C/file?format=sdf&get3d=True  -- CN1C%3DC%28C%28%3DO%29C2%3DC1C%3DC%28C%3DC2%29F%29S%28%3DO%29C could not be loaded.