ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC%28C1CCC%28CC1%29C%28%26%2361%3BO%29NC2%26%2361%3BCC%26%2361%3BNC%26%2361%3BC2%29N/file?format=sdf&get3d=True  -- CC%28C1CCC%28CC1%29C%28%26%2361%3BO%29NC2%26%2361%3BCC%26%2361%3BNC%26%2361%3BC2%29N could not be loaded.