ERROR opening https://cactus.nci.nih.gov/chemical/structure/%5B11CH3%5DN%28C%29Cc1ccccc1Sc2ccc%28cc2N%29C%23N/file?format=sdf&get3d=True  -- %5B11CH3%5DN%28C%29Cc1ccccc1Sc2ccc%28cc2N%29C%23N could not be loaded.