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