ERROR opening https://cactus.nci.nih.gov/chemical/structure/C3CN%28C%29CCN3c1cc%28ccc1OC%29NS%28%3DO%29%28%3DO%29c2ccc%28I%29cc2/file?format=sdf&get3d=True  -- C3CN%28C%29CCN3c1cc%28ccc1OC%29NS%28%3DO%29%28%3DO%29c2ccc%28I%29cc2 could not be loaded.