InChI=1S/C21H20O15/c22-6-3-8(24)7(23)1-5(6)2-10(26)13(28)12-9(25)4-11(27)18(14(12)29)35-21-17(32)15(30)16(31)19(36-21)20(33)34/h1,3-4,15-17,19,21-25,27,29-32H,2H2,(H,33,34)