ERROR opening https://cactus.nci.nih.gov/chemical/structure/%5BNa%2B%5D.%5BO-%5DC%28%3DO%29C%28CCC%29CCC/file?format=sdf&get3d=True -- %5BNa%2B%5D.%5BO-%5DC%28%3DO%29C%28CCC%29CCC could not be loaded.