ERROR opening https://cactus.nci.nih.gov/chemical/structure/C1%28%3DC%28OC2%3DC%28C1%3DO%29C%3DCC3%3DC2C%3DCO3%29C4%3DCC%3DCC%3DC4%29OC/file?format=sdf&get3d=True  -- C1%28%3DC%28OC2%3DC%28C1%3DO%29C%3DCC3%3DC2C%3DCO3%29C4%3DCC%3DCC%3DC4%29OC could not be loaded.