InChI=1S/C16H14O10S/c1-24-11-3-2-8(15(20)16(11)26-27(21,22)23)9-6-25-12-5-7(17)4-10(18)13(12)14(9)19/h2-5,9,17-18,20H,6H2,1H3,(H,21,22,23)