ERROR opening https://cactus.nci.nih.gov/chemical/structure/Oc2cc%28cc1OC%28C%5C3%3DC%28/c12%29CC%28CC/3%29C%29%28C%29C%29CCCCCC/file?format=sdf&get3d=True  -- Oc2cc%28cc1OC%28C%5C3%3DC%28/c12%29CC%28CC/3%29C%29%28C%29C%29CCCCCC could not be loaded.