ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC%28CC1%26%2361%3BCC%28%26%2361%3BC%28C%26%2361%3BC1OC%29SC%29OC%29N/file?format=sdf&get3d=True  -- CC%28CC1%26%2361%3BCC%28%26%2361%3BC%28C%26%2361%3BC1OC%29SC%29OC%29N could not be loaded.