ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1C2%3DCC%3DCC%3DC2C%28%3DO%29C3%3DCC%3DCC%3DC31/file?format=sdf&get3d=True  -- C1C2%3DCC%3DCC%3DC2C%28%3DO%29C3%3DCC%3DCC%3DC31 could not be loaded.