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