InChI=1S/C30H20O13S/c31-15-8-6-14(7-9-15)30-29(43-44(37,38)39)24(21-17(33)10-16(32)11-19(21)41-30)23-20(42-30)12-18(34)22-25(35)26(36)27(40-28(22)23)13-4-2-1-3-5-13/h1-12,24,29,31-34,36H,(H,37,38,39)/t24?,29?,30-/m1/s1