ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1%3DCC%28%3DCC%3DC1CC%28%3DO%29CC2%3DCC%3DC%28C%3DC2%29Br%29Br/file?format=sdf&get3d=True  -- C1%3DCC%28%3DCC%3DC1CC%28%3DO%29CC2%3DCC%3DC%28C%3DC2%29Br%29Br could not be loaded.