ERROR opening https://cactus.nci.nih.gov/chemical/structure/c1cc2c%28cc1O%29c%28c%5BnH%5D2%29CC%28%3DO%29O/file?format=sdf&get3d=True  -- c1cc2c%28cc1O%29c%28c%5BnH%5D2%29CC%28%3DO%29O could not be loaded.