InChI=1S/C36H28O17/c37-15-7-6-13(8-16(15)38)36-33(46)24(21-17(39)9-14(10-19(21)52-36)49-35-29(45)26(42)28(44)32(51-35)34(47)48)23-20(53-36)11-18(40)22-25(41)27(43)30(50-31(22)23)12-4-2-1-3-5-12/h1-11,24,26,28-29,32-33,35,37-40,42-46H,(H,47,48)/t24?,26?,28?,29?,32?,33?,35?,36-/m1/s1