ERROR opening https://cactus.nci.nih.gov/chemical/structure/C%5CC%3DC%5CC%28%3DO%29C%5BC%40H%5D1CC%5BC%40H%5D%28C%29%5BC%40H%5D%28CC%28%3DO%29NC%5BC%40H%5D%28O%29%5BC%40H%5D%28C%29C%28%3DO%29NCCC%5BC%40H%5D2O%5BC%40%40%5D3%28CCC%5BC%40H%5D%28CC%5BC%40H%5D%28C%29%5CC%3DC%28/C%29%5C%5BC%40H%5D%28C%29O%29O3%29CC%5BC%40%40H%5D2C%29O1/file?format=sdf&get3d=True -- C%5CC%3DC%5CC%28%3DO%29C%5BC%40H%5D1CC%5BC%40H%5D%28C%29%5BC%40H%5D%28CC%28%3DO%29NC%5BC%40H%5D%28O%29%5BC%40H%5D%28C%29C%28%3DO%29NCCC%5BC%40H%5D2O%5BC%40%40%5D3%28CCC%5BC%40H%5D%28CC%5BC%40H%5D%28C%29%5CC%3DC%28/C%29%5C%5BC%40H%5D%28C%29O%29O3%29CC%5BC%40%40H%5D2C%29O1 could not be loaded.