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