InChI=1/C23H14Cl2N2O4/c24-15-8-11-18(20(25)13-15)23(30)31-17-9-6-14(7-10-17)12-19-21(28)26-27(22(19)29)16-4-2-1-3-5-16/h1-13H,(H,26,28)/b19-12-/f/h26H 299A215796554A43