ERROR opening https://cactus.nci.nih.gov/chemical/structure/Brc1ccccc1C%5BN%2B%5D%28CC%29%28C%29C/file?format=sdf&get3d=True -- Brc1ccccc1C%5BN%2B%5D%28CC%29%28C%29C could not be loaded.