ERROR opening https://cactus.nci.nih.gov/chemical/structure/C%28CN%29N.C%28CN%29N.C%28CN%29N.O.O.Cl%5BCo%5D%28Cl%29Cl/file?format=sdf&get3d=True  -- C%28CN%29N.C%28CN%29N.C%28CN%29N.O.O.Cl%5BCo%5D%28Cl%29Cl could not be loaded.