InChI=1S/C30H20O12S/c31-16-11-17(32)21-19(12-16)40-30(15-9-5-2-6-10-15)29(42-43(36,37)38)24(21)23-20(41-30)13-18(33)22-25(34)26(35)27(39-28(22)23)14-7-3-1-4-8-14/h1-13,24,29,31-33,35H,(H,36,37,38)/t24?,29?,30-/m1/s1