ERROR opening https://cactus.nci.nih.gov/chemical/structure/N%23Cc2ccc%28cc2%29-c1ccc%28C%28C%29CNS%28%3DO%29%28%3DO%29C%28C%29C%29cc1/file?format=sdf&get3d=True  -- N%23Cc2ccc%28cc2%29-c1ccc%28C%28C%29CNS%28%3DO%29%28%3DO%29C%28C%29C%29cc1 could not be loaded.