ERROR opening https://cactus.nci.nih.gov/chemical/structure/CC1%3DC%28SC2%3DNC3%3DNC%28%3DNC%3DC3CN12%29C%29CCO/file?format=sdf&get3d=True  -- CC1%3DC%28SC2%3DNC3%3DNC%28%3DNC%3DC3CN12%29C%29CCO could not be loaded.