ERROR opening https://cactus.nci.nih.gov/chemical/structure/CN1CCC%5BC%40H%5D1C2%3DCN%3DCC%3DC2.Cl/file?format=sdf&get3d=True  -- CN1CCC%5BC%40H%5D1C2%3DCN%3DCC%3DC2.Cl could not be loaded.