ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC12CCC3C%28C1CC%28C2%3DO%29Cl%29CCC4%3DC3C%3DCC%28%3DC4%29OC/file?format=sdf&get3d=True -- CC12CCC3C%28C1CC%28C2%3DO%29Cl%29CCC4%3DC3C%3DCC%28%3DC4%29OC could not be loaded.