InChI=1S/C37H32O17/c1-12-5-18(39)26-28(42)23-17(7-14(49-3)10-21(23)50-4)25(33(26)51-12)24-16-6-13(48-2)8-19(40)22(16)32(27-20(41)9-15(11-38)52-34(24)27)53-37-31(45)29(43)30(44)35(54-37)36(46)47/h5-10,29-31,35,37-38,40,42-45H,11H2,1-4H3,(H,46,47)