ERROR opening https://cactus.nci.nih.gov/chemical/structure/CN%5BC%40%40H%5D%28C%29%5BC%40H%5D%28O%29c1ccccc1/file?format=sdf&get3d=True  -- CN%5BC%40%40H%5D%28C%29%5BC%40H%5D%28O%29c1ccccc1 could not be loaded.