ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1%3DCC%28%3DO%29C%3DCC1%3DC%28C2%3DCC%3DC%28C%3DC2%29O%29C3%3DCC%3DC%28C%3DC3%29O/file?format=sdf&get3d=True  -- C1%3DCC%28%3DO%29C%3DCC1%3DC%28C2%3DCC%3DC%28C%3DC2%29O%29C3%3DCC%3DC%28C%3DC3%29O could not be loaded.