ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%3DCC%3DC%28C%28C%28CC%29NC%29%3DO%29C%3DC1.Cl/file?format=sdf&get3d=True  -- CC1%3DCC%3DC%28C%28C%28CC%29NC%29%3DO%29C%3DC1.Cl could not be loaded.