InChI=1S/C28H24O13/c29-14-4-1-12(2-5-14)27(37)38-11-22-24(34)25(35)26(36)28(41-22)39-15-8-18(32)23-19(33)10-20(40-21(23)9-15)13-3-6-16(30)17(31)7-13/h1-10,22,24-26,28-32,34-36H,11H2