InChI=1S/C21H22O14S/c22-3-5-31-12-2-1-11(9-13(12)33-7-8-34-36(28,29)30)21-20(27)19(26)16-14(35-21)10-15(32-6-4-23)17(24)18(16)25/h1-2,9-10,22-25,27H,3-8H2,(H,28,29,30)