ERROR opening https://cactus.nci.nih.gov/chemical/structure/c2cc%28Cl%29ccc2NC%28%3DO%29NC%28%3DO%29c1c%28F%29cccc1F/file?format=sdf&get3d=True  -- c2cc%28Cl%29ccc2NC%28%3DO%29NC%28%3DO%29c1c%28F%29cccc1F could not be loaded.