ERROR opening https://cactus.nci.nih.gov/chemical/structure/Fc2cc1C%28%3DO%29/C%28C%28%3DO%29O%29%3DC%5CN3c1c%28c2%29CCC3C/file?format=sdf&get3d=True  -- Fc2cc1C%28%3DO%29/C%28C%28%3DO%29O%29%3DC%5CN3c1c%28c2%29CCC3C could not be loaded.