InChI=1/C12H9ClN2O4/c1-19-10(16)5-9-12(18)15-11(17)7-4-6(13)2-3-8(7)14-9/h2-5,14H,1H3,(H,15,17,18)/b9-5-/f/h15H 19C8D6717B12BE26