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