ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC%28%3DO%29OI%28C1%3DCC%3DCC%3DC1%29OC%28%3DO%29C/file?format=sdf&get3d=True  -- CC%28%3DO%29OI%28C1%3DCC%3DCC%3DC1%29OC%28%3DO%29C could not be loaded.