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