ERROR opening https://cactus.nci.nih.gov/chemical/structure/C%5BC%40H%5D1%5BC%40%40H%5D%28%5BC%40H%5D%28%5BC%40H%5D%28%5BC%40%40H%5D%28O1%29O%5BC%40%40H%5D2%5BC%40H%5D%28%5BC%40%40H%5D%28%5BC%40H%5D%28O%5BC%40H%5D2OC3%3DCC%28%3DC4C%28%3DO%29C%5BC%40H%5D%28OC4%3DC3%29C5%3DCC%28%3DC%28C%3DC5%29O%29O%29O%29CO%29O%29O%29O%29O%29O/file?format=sdf&get3d=True  -- C%5BC%40H%5D1%5BC%40%40H%5D%28%5BC%40H%5D%28%5BC%40H%5D%28%5BC%40%40H%5D%28O1%29O%5BC%40%40H%5D2%5BC%40H%5D%28%5BC%40%40H%5D%28%5BC%40H%5D%28O%5BC%40H%5D2OC3%3DCC%28%3DC4C%28%3DO%29C%5BC%40H%5D%28OC4%3DC3%29C5%3DCC%28%3DC%28C%3DC5%29O%29O%29O%29CO%29O%29O%29O%29O%29O could not be loaded.