InChI=1S/C15H16O9S/c1-8-2-13(19)15-9(4-11(18)6-14(15)23-8)3-10(17)5-12(7-16)24-25(20,21)22/h2,4,6,12,16,18H,3,5,7H2,1H3,(H,20,21,22)