InChI=1S/C12H18O11/c13-5(14)2-1-4(10(18)19)3-22-12-8(17)6(15)7(16)9(23-12)11(20)21/h4,6-9,12,15-17H,1-3H2,(H,13,14)(H,18,19)(H,20,21)