ERROR opening https://cactus.nci.nih.gov/chemical/structure/%5BH%5D%5BC%40%5D12CCN%28CCCC%28%3DO%29C3%3DCC%3DC%28F%29C%3DC3%29C%5BC%40%40%5D1%28%5BH%5D%29C1%3DCC%3DCC3%3DC1N2CCN3C/file?format=sdf&get3d=True  -- %5BH%5D%5BC%40%5D12CCN%28CCCC%28%3DO%29C3%3DCC%3DC%28F%29C%3DC3%29C%5BC%40%40%5D1%28%5BH%5D%29C1%3DCC%3DCC3%3DC1N2CCN3C could not be loaded.