InChI=1S/C37H28O15/c1-48-24-8-7-16(9-18(24)28-20(39)12-21(40)30-23(42)14-25(51-34(28)30)15-5-3-2-4-6-15)26-13-22(41)29-19(38)10-17(11-27(29)50-26)49-37-33(45)31(43)32(44)35(52-37)36(46)47/h2-14,31-33,35,37-40,43-45H,1H3,(H,46,47)