ERROR opening https://cactus.nci.nih.gov/chemical/structure/CCC%28%3DO%29N%28C1CCN%28CC1%29CCC2%3DCC%3DCC%3DC2%29C3%3DCC%3DC%28C%3DC3%29Br/file?format=sdf&get3d=True -- CCC%28%3DO%29N%28C1CCN%28CC1%29CCC2%3DCC%3DCC%3DC2%29C3%3DCC%3DC%28C%3DC3%29Br could not be loaded.