ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1CC%28CC%28C%29%28C%29C1%29OC%28%3DO%29c2ccccc2O/file?format=sdf&get3d=True  -- CC1CC%28CC%28C%29%28C%29C1%29OC%28%3DO%29c2ccccc2O could not be loaded.