ERROR opening https://cactus.nci.nih.gov/chemical/structure/Cc1ncc2C%28OCc2c1O%29c3ccc%28Cl%29cc3/file?format=sdf&get3d=True  -- Cc1ncc2C%28OCc2c1O%29c3ccc%28Cl%29cc3 could not be loaded.