ERROR opening https://cactus.nci.nih.gov/chemical/structure/Li%20.Li%20.Li%20.C%28C%28%3DO%29O-%29C%28CC%28%3DO%29O-%29%28C%28%3DO%29O-%29O/file?format=sdf&get3d=True -- Li%20.Li%20.Li%20.C%28C%28%3DO%29O-%29C%28CC%28%3DO%29O-%29%28C%28%3DO%29O-%29O could not be loaded.