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