InChI=1/C21H26O9/c1-3-21(4-2)29-19(27)20(30-21)10-15(24)18(26)16(11-20)28-17(25)8-6-12-5-7-13(22)14(23)9-12/h5-9,15-16,18,22-24,26H,3-4,10-11H2,1-2H3/b8-6+/t15-,16-,18+,20-/m1/s1 A1EE66EBF7208B7A