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