InChI=1S/C21H28O9/c1-8-3-4-11-9(2)20(27)30-19(11)15-10(5-12(23)14(8)15)7-28-21-18(26)17(25)16(24)13(6-22)29-21/h5,9,11,13,15-19,21-22,24-26H,3-4,6-7H2,1-2H3/t9-,11-,13+,15-,16+,17-,18+,19-,21+/m0/s1