InChI=1S/C20H22O10S/c1-11(10-30-31(26,27)28)3-5-14-18(24)9-19(25)15(20(14)29-2)8-17(23)13-6-4-12(21)7-16(13)22/h3-4,6-7,9,21-22,24-25H,5,8,10H2,1-2H3,(H,26,27,28)