InChI=1S/C29H20O12S/c30-15-5-1-14(2-6-15)27-29(24-20(33)10-17(32)12-22(24)38-27)23-19(9-16(31)11-21(23)39-28(29)34)26-25(40-26)13-3-7-18(8-4-13)41-42(35,36)37/h1-12,25-27,30-33H,(H,35,36,37)