InChI=1S/C17H20O10/c1-6(18)13-14(26-13)7-3-4-8(9(5-7)24-2)25-17-12(21)10(19)11(20)15(27-17)16(22)23/h3-5,10-15,17,19-21H,1-2H3,(H,22,23)