InChI=1S/C21H20O15/c22-6-3-7(23)11(8(24)4-6)13(27)9(25)1-5-2-10(14(28)15(29)12(5)26)35-21-18(32)16(30)17(31)19(36-21)20(33)34/h2-4,16-19,21-24,26,28-32H,1H2,(H,33,34)