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