ERROR opening https://cactus.nci.nih.gov/chemical/structure/O%3DC%28OCC%29%5CC%28%3DC%5Cc1ncc%28n1C%29%5BN%2B%5D%28%5BO-%5D%29%3DO%29C%28%3DO%29C/file?format=sdf&get3d=True  -- O%3DC%28OCC%29%5CC%28%3DC%5Cc1ncc%28n1C%29%5BN%2B%5D%28%5BO-%5D%29%3DO%29C%28%3DO%29C could not be loaded.