ERROR opening https://cactus.nci.nih.gov/chemical/structure/C%5BC%40H%5D%28%5BC%40H%5D%28/C%3DC/C1%3DCC%3DCC%3DC1%29OC%29/C%28%3DC%5COC%29/C%28%3DO%29OC/file?format=sdf&get3d=True  -- C%5BC%40H%5D%28%5BC%40H%5D%28/C%3DC/C1%3DCC%3DCC%3DC1%29OC%29/C%28%3DC%5COC%29/C%28%3DO%29OC could not be loaded.