ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1%3DCC%28%3DC%28C2%3DC1NC%3DC2OP%28%3DO%29%28O%29O%29Cl%29Br/file?format=sdf&get3d=True  -- C1%3DCC%28%3DC%28C2%3DC1NC%3DC2OP%28%3DO%29%28O%29O%29Cl%29Br could not be loaded.