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