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