InChI=1S/C19H14O11/c20-8-3-1-7(2-4-8)9-6-29-10-5-11(14(22)15(23)12(10)13(9)21)30-17(19(27)28)16(24)18(25)26/h1-6,16-17,20,22-24H,(H,25,26)(H,27,28)