ERROR opening https://cactus.nci.nih.gov/chemical/structure/CN1CCC%28CC1%29C2%3DCC3%3DC%28O2%29C%3DCC%28%3DC3%29Cl/file?format=sdf&get3d=True  -- CN1CCC%28CC1%29C2%3DCC3%3DC%28O2%29C%3DCC%28%3DC3%29Cl could not be loaded.