InChI=1S/C21H24O10S/c1-11(2)4-5-15-18(31-21(26)19-12(3)6-14(23)8-17(19)24)7-13(9-22)16(20(15)25)10-30-32(27,28)29/h4,6-8,22-25H,5,9-10H2,1-3H3,(H,27,28,29)