InChI=1S/C20H26O6/c1-10-7-20-8-11(10)3-4-12(20)19(9-21)6-5-13(22)18(2,17(25)26)15(19)14(20)16(23)24/h9,11-15,22H,1,3-8H2,2H3,(H,23,24)(H,25,26)/p-2/t11-,12+,13+,14-,15-,18-,19-,20+/m1/s1