InChI=1S/C27H36O4/c1-19(2)9-6-12-22(26(28)29)13-7-10-20(3)11-8-14-24-23(17-18-27(24,5)30)25-16-15-21(4)31-25/h9,11,13,15-18,30H,6-8,10,12,14H2,1-5H3,(H,28,29)/b20-11+,22-13-/t27-/m0/s1