ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC%28%26%2361%3BO%29C1%28CCC2C1%28CCC3C2CC%26%2361%3BC4C3%28CCC%28C4%29O%29C%29C%29O/file?format=sdf&get3d=True -- CC%28%26%2361%3BO%29C1%28CCC2C1%28CCC3C2CC%26%2361%3BC4C3%28CCC%28C4%29O%29C%29C%29O could not be loaded.