ERROR opening https://cactus.nci.nih.gov/chemical/structure/Cl/C%28c1ccc%28OC%29cc1%29%3DC%28/c2ccc%28OC%29cc2%29c3ccc%28OC%29cc3/file?format=sdf&get3d=True  -- Cl/C%28c1ccc%28OC%29cc1%29%3DC%28/c2ccc%28OC%29cc2%29c3ccc%28OC%29cc3 could not be loaded.