InChI=1S/C26H30O4/c1-22(2)18-13-20(28)25(5)17(23(18,3)9-7-19(22)27)6-10-24(4)16(15-8-11-29-14-15)12-21-26(24,25)30-21/h6-9,11,14,16,18,21H,10,12-13H2,1-5H3/t16-,18-,21+,23+,24-,25-,26+/m0/s1