ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%3DCC%3DC%28C%3DC1%29S%28%3DO%29%28%3DO%29N%28Cl%29Cl/file?format=sdf&get3d=True  -- CC1%3DCC%3DC%28C%3DC1%29S%28%3DO%29%28%3DO%29N%28Cl%29Cl could not be loaded.