InChI=1/C20H20O8/c1-8(21)4-10-5-11(22)6-13(23)16(10)15-9(2)28-20(26)17-12(15)7-14(24)19(27-3)18(17)25/h5-7,9,15,22-25H,4H2,1-3H3/t9-,15+/m1/s1 22AED575DFFE9D0C