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