InChI=1S/C16H14O9S/c1-23-15-12(19)6-10(17)14-11(18)7-13(24-16(14)15)8-2-4-9(5-3-8)25-26(20,21)22/h2-6,13,17,19H,7H2,1H3,(H,20,21,22)