InChI=1S/C27H22O19/c28-10-2-8(3-11(29)16(10)32)25(41)43-14-6-9(4-12(30)17(14)33)26(42)44-15-5-7(23(37)38)1-13(31)21(15)45-27-20(36)18(34)19(35)22(46-27)24(39)40/h1-6,18-20,22,27-36H,(H,37,38)(H,39,40)