ERROR opening https://cactus.nci.nih.gov/chemical/structure/CCCOC1%3DC%28C%3DC%28C%28%3DC1%29CCN%29OC%29Br/file?format=sdf&get3d=True  -- CCCOC1%3DC%28C%3DC%28C%28%3DC1%29CCN%29OC%29Br could not be loaded.