ERROR opening https://cactus.nci.nih.gov/chemical/structure/CCc1c%28c%28n%28n1%29C%29C%28%3DO%29NCc2ccc%28cc2%29C%28C%29%28C%29C%29Cl/file?format=sdf&get3d=True  -- CCc1c%28c%28n%28n1%29C%29C%28%3DO%29NCc2ccc%28cc2%29C%28C%29%28C%29C%29Cl could not be loaded.