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