InChI=1/C20H20O9/c21-6-8-4-10-15(12(23)5-8)17(26)14-9(2-1-3-11(14)22)19(10)29-20-18(27)16(25)13(24)7-28-20/h1-5,13,16,18-25,27H,6-7H2/t13-,16-,18+,19-,20-/m1/s1 06873DE0597D4FD2