ERROR opening https://cactus.nci.nih.gov/chemical/structure/NC1%3DCC%28%3DCC%28S%29%3DC1C%3DO%29C1%3DCC%3DC%28NF%29C%3DC1/file?format=sdf&get3d=True  -- NC1%3DCC%28%3DCC%28S%29%3DC1C%3DO%29C1%3DCC%3DC%28NF%29C%3DC1 could not be loaded.