InChI=1S/C38H52O20/c1-17(11-7-13-19(3)34(51)57-36-28(46)25(43)23(41)21(15-39)53-36)9-5-6-10-18(2)12-8-14-20(4)35(52)58-38-30(48)31(24(42)22(16-40)54-38)55-37-29(47)26(44)27(45)32(56-37)33(49)50/h5-14,21-32,36-48H,15-16H2,1-4H3,(H,49,50)/b6-5+,11-7+,12-8+,17-9+,18-10+,19-13+,20-14+