ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%3DC%28S%28%3DO%29%28%3DO%29CCO1%29/C%28%3DN%5Cc2ccccc2%29/O/file?format=sdf&get3d=True  -- CC1%3DC%28S%28%3DO%29%28%3DO%29CCO1%29/C%28%3DN%5Cc2ccccc2%29/O could not be loaded.