ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI%3DInChI%26%2361%3B1S/6FH.U/h6%2A1H%26%2359%3B/q%26%2359%3B%26%2359%3B%26%2359%3B%26%2359%3B%26%2359%3B%26%2359%3B%2B6/p-6/file?format=sdf&get3d=True  -- InChI%3DInChI%26%2361%3B1S/6FH.U/h6%2A1H%26%2359%3B/q%26%2359%3B%26%2359%3B%26%2359%3B%26%2359%3B%26%2359%3B%26%2359%3B%2B6/p-6 could not be loaded.