InChI=1S/C25H22O9/c1-32-20-6-11(2-4-15(20)28)24-14(10-26)22-13(3-5-16(29)25(22)34-24)19-9-18(31)23-17(30)7-12(27)8-21(23)33-19/h2-8,14,19,24,26-30H,9-10H2,1H3