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