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