InChI=1S/C27H22O19/c28-10-1-7(23(37)38)5-14(16(10)32)43-26(42)9-2-11(29)17(33)15(6-9)44-25(41)8-3-12(30)21(13(31)4-8)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)