InChI=1S/C37H28O17/c1-50-15-5-2-13(3-6-15)23-10-19(40)27-18(39)9-17(38)26(34(27)52-23)16-8-14(24-11-20(41)28-25(51-24)12-21(42)29(43)30(28)44)4-7-22(16)53-37-33(47)31(45)32(46)35(54-37)36(48)49/h2-12,31-33,35,37-39,42-47H,1H3,(H,48,49)