ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1C%28CCN1CC2%3DCC%3DCC%3DC2%29NC%28%3DO%29C3%3DCC%28%3DC%28C%3DC3OC%29NC%29Cl/file?format=sdf&get3d=True  -- CC1C%28CCN1CC2%3DCC%3DCC%3DC2%29NC%28%3DO%29C3%3DCC%28%3DC%28C%3DC3OC%29NC%29Cl could not be loaded.