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