InChI=1S/C16H14O9S/c17-10-5-12(19)15-14(6-10)24-7-9(16(15)20)3-8-1-2-11(18)13(4-8)25-26(21,22)23/h1-2,4-6,9,17-19H,3,7H2,(H,21,22,23)