ERROR opening https://cactus.nci.nih.gov/chemical/structure/c1cc%28sc1%29C%28%3DO%29c2c3cc%28ccc3n%28c2O%29C%28%3DO%29N%29Cl/file?format=sdf&get3d=True  -- c1cc%28sc1%29C%28%3DO%29c2c3cc%28ccc3n%28c2O%29C%28%3DO%29N%29Cl could not be loaded.