InChI=1S/C21H20O13S/c22-3-5-31-15-2-1-12(9-16(15)32-6-4-23)21-20(26)19(25)18-14(24)10-13(11-17(18)34-21)30-7-8-33-35(27,28)29/h1-3,9-11,23-24,26H,4-8H2,(H,27,28,29)