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