InChI=1S/C21H22O12S/c22-9-17-18(24)19(25)20(26)21(32-17)30-12-5-6-13-14(23)8-15(31-16(13)7-12)10-1-3-11(4-2-10)33-34(27,28)29/h1-7,15,17-22,24-26H,8-9H2,(H,27,28,29)