InChI=1/C19H15NO8/c1-12(21)27-17-9-14(25-7-8-26-20(23)24)10-18-19(17)15(22)11-16(28-18)13-5-3-2-4-6-13/h2-6,9-11H,7-8H2,1H3 1C74828DDA746AE8