InChI=1S/C21H20O14S/c1-31-13-5-9(22)6-14-15(13)16(26)20(18(33-14)8-2-3-10(23)11(24)4-8)34-21-17(27)19(12(25)7-32-21)35-36(28,29)30/h2-6,12,17,19,21-25,27H,7H2,1H3,(H,28,29,30)