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