ERROR opening https://cactus.nci.nih.gov/chemical/structure/FC%28F%29%28F%29c1ccc2c%28c1%29n%28nc2%5CC%3DC%5CC%28%3DO%29O%29Cc3ccc%28Cl%29cc3Cl/file?format=sdf&get3d=True -- FC%28F%29%28F%29c1ccc2c%28c1%29n%28nc2%5CC%3DC%5CC%28%3DO%29O%29Cc3ccc%28Cl%29cc3Cl could not be loaded.