ERROR opening https://cactus.nci.nih.gov/chemical/structure/C%5BC%40%40%5D1+%28CO%5BC%40%40H%5D%28%5BC%40%40H%5D%28%5BC%40H%5D1NC%29+O%29+O%5BC%40H%5D2%5BC%40%40H%5D%28C%5BC%40%40H%5D%28%5BC%40H%5D%28%5BC%40%40H%5D2O%29+O%5BC%40%40H%5D3%5BC%40%40H%5D%28CC%3DC+%28O3%29+CN%29+N%29+N%29+N%29+O/file?format=sdf&get3d=True -- C%5BC%40%40%5D1+%28CO%5BC%40%40H%5D%28%5BC%40%40H%5D%28%5BC%40H%5D1NC%29+O%29+O%5BC%40H%5D2%5BC%40%40H%5D%28C%5BC%40%40H%5D%28%5BC%40H%5D%28%5BC%40%40H%5D2O%29+O%5BC%40%40H%5D3%5BC%40%40H%5D%28CC%3DC+%28O3%29+CN%29+N%29+N%29+N%29+O could not be loaded.