InChI=1S/C22H22O10S/c1-11(2)5-6-13-17(29-3)10-18-15(20(13)30-4)9-14(22(25)31-18)12-7-8-16(23)21(19(12)24)32-33(26,27)28/h5,7-10,23-24H,6H2,1-4H3,(H,26,27,28)