ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC%5C1%3DC%28/C%28%3DC/C2%3DC%28C%28%3DC%28N2%29/C%3DC%5C3/C%28%3DC%28C%28%3DO%29N3%29C%29C%3DC%29C%29CCC%28%3DO%29O%29/N/C1%3DC%5C%0AC4%3DNC%28%3DO%29C%28%3DC4C%29C%3DC%29CCC%28%3DO%29O/file?format=sdf&get3d=True  -- CC%5C1%3DC%28/C%28%3DC/C2%3DC%28C%28%3DC%28N2%29/C%3DC%5C3/C%28%3DC%28C%28%3DO%29N3%29C%29C%3DC%29C%29CCC%28%3DO%29O%29/N/C1%3DC%5C%0AC4%3DNC%28%3DO%29C%28%3DC4C%29C%3DC%29CCC%28%3DO%29O could not be loaded.