InChI=1S/C35H22O15/c36-16-8-6-14(7-9-16)23(32(43)44)30-28(40)22(35(48)50-30)15-10-17-18(12-20(37)29-24(17)19(11-15)34(47)49-29)25(33(45)46)27(39)26(38)21(31(41)42)13-4-2-1-3-5-13/h1-12,21,25-26,36-38,40H,(H,41,42)(H,43,44)(H,45,46)/b30-23-