ERROR opening https://cactus.nci.nih.gov/chemical/structure/C%5CC%28%26%2361%3BN%5CO%29%5CC%28%5CC%29%26%2361%3BN%5CO/file?format=sdf&get3d=True  -- C%5CC%28%26%2361%3BN%5CO%29%5CC%28%5CC%29%26%2361%3BN%5CO could not be loaded.