ERROR opening https://cactus.nci.nih.gov/chemical/structure/CNC%28%26%2361%3BO%29CSP%28%26%2361%3BS%29%28OC%29OC/file?format=sdf&get3d=True  -- CNC%28%26%2361%3BO%29CSP%28%26%2361%3BS%29%28OC%29OC could not be loaded.