ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1%3DCC%28%3DC%28C%3DC1OC2%3DC%28C%3DC%28C%3DC2I%29CCN%29I%29I%29O/file?format=sdf&get3d=True  -- C1%3DCC%28%3DC%28C%3DC1OC2%3DC%28C%3DC%28C%3DC2I%29CCN%29I%29I%29O could not be loaded.