InChI=1S/C20H18O12S/c21-10-5-11(22)16(20-18(26)17(25)13(24)7-30-20)19-15(10)12(23)6-14(31-19)8-2-1-3-9(4-8)32-33(27,28)29/h1-6,13,17-18,20-22,24-26H,7H2,(H,27,28,29)