ERROR opening https://cactus.nci.nih.gov/chemical/structure/c1ccc2c%28c1%29c%28c%5BnH%5D2%29c3nccs3/file?format=sdf&get3d=True  -- c1ccc2c%28c1%29c%28c%5BnH%5D2%29c3nccs3 could not be loaded.