InChI=1S/C21H24O11/c22-6-14-17(28)18(29)19(30)21(32-14)15-11(25)5-13-8(16(15)27)4-12(26)20(31-13)7-1-2-9(23)10(24)3-7/h1-3,5,12,14,17-30H,4,6H2/t12-,14+,17+,18-,19+,20+,21-/m0/s1