ERROR opening https://cactus.nci.nih.gov/chemical/structure/CN1CCN%28CC1%29C2%3DNC3%3DCC%3DCC%3DC3OC4%3DC2C%3DC%28C%3DC4%29Cl/file?format=sdf&get3d=True  -- CN1CCN%28CC1%29C2%3DNC3%3DCC%3DCC%3DC3OC4%3DC2C%3DC%28C%3DC4%29Cl could not be loaded.