InChI=1S/C19H16O11/c20-10-2-1-7(3-11(10)21)9-6-29-13-5-8(4-12(22)14(13)15(9)23)30-17(19(27)28)16(24)18(25)26/h1-5,9,16-17,20-22,24H,6H2,(H,25,26)(H,27,28)