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