ERROR opening https://cactus.nci.nih.gov/chemical/structure/c1ccc2c%28c1%29ccc%28c2c3c4ccccc4ccc3O%29O/file?format=sdf&get3d=True  -- c1ccc2c%28c1%29ccc%28c2c3c4ccccc4ccc3O%29O could not be loaded.