ERROR opening https://cactus.nci.nih.gov/chemical/structure/CN%28C%29CCc2c%5BnH%5Dc1ccc%28OC%29c%28O%29c12/file?format=sdf&get3d=True  -- CN%28C%29CCc2c%5BnH%5Dc1ccc%28OC%29c%28O%29c12 could not be loaded.