InChI=1S/C20H24O11/c21-13(22)9-6-5-8-12-11(29-12)7-3-1-2-4-10-14(23)30-20-17(26)15(24)16(25)18(31-20)19(27)28/h1-5,7-8,10-12,15-18,20,24-26H,6,9H2,(H,21,22)(H,27,28)/b2-1+,7-3-,8-5+,10-4-