ERROR opening https://cactus.nci.nih.gov/chemical/structure/c1cc%28c2c%28c1%29OC%28O2%29%28F%29F%29c3c%5BnH%5Dcc3C%23N/file?format=sdf&get3d=True  -- c1cc%28c2c%28c1%29OC%28O2%29%28F%29F%29c3c%5BnH%5Dcc3C%23N could not be loaded.