InChI=1S/C14H14O9S/c1-14(17,6-15)13-12(23-24(18,19)20)8-4-7-2-3-11(16)21-9(7)5-10(8)22-13/h2-5,12-13,15,17H,6H2,1H3,(H,18,19,20)