InChI=1S/C24H18O6/c25-15-8-6-13(7-9-15)16-10-21(27)30-19-12-20-23(24(28)22(16)19)17(26)11-18(29-20)14-4-2-1-3-5-14/h1-9,12,16,18,25,28H,10-11H2