ERROR opening https://cactus.nci.nih.gov/chemical/structure/Fc2cc%28ccc2c1ccccc1%29%5BC%40H%5D%28C%28%3DO%29O%29C/file?format=sdf&get3d=True  -- Fc2cc%28ccc2c1ccccc1%29%5BC%40H%5D%28C%28%3DO%29O%29C could not be loaded.