ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%26%2361%3BC%28C%28%26%2361%3BC2C%28%26%2361%3BC1O%29C3%28C%28%26%2361%3BCC%28%26%2361%3BO%29%26%2391%3BC-%26%2393%3B%28C3%26%2361%3BO%29C%28%26%2361%3BO%29C%29O2%29C%29C%28%26%2361%3BO%29C%29O.%26%2391%3BNa%2B%26%2393%3B/file?format=sdf&get3d=True  -- CC1%26%2361%3BC%28C%28%26%2361%3BC2C%28%26%2361%3BC1O%29C3%28C%28%26%2361%3BCC%28%26%2361%3BO%29%26%2391%3BC-%26%2393%3B%28C3%26%2361%3BO%29C%28%26%2361%3BO%29C%29O2%29C%29C%28%26%2361%3BO%29C%29O.%26%2391%3BNa%2B%26%2393%3B could not be loaded.