ERROR opening https://cactus.nci.nih.gov/chemical/structure/FC%28F%29%28F%29%5BC%40H%5D%28O%29c2c3c%28cc1c2cccc1%29cccc3/file?format=sdf&get3d=True  -- FC%28F%29%28F%29%5BC%40H%5D%28O%29c2c3c%28cc1c2cccc1%29cccc3 could not be loaded.