InChI=1/C16H10Cl2N2O3/c17-8-1-3-12-10(5-8)15(11(7-19-12)16(22)23)20-13-6-9(18)2-4-14(13)21/h1-7,21H,(H,19,20)(H,22,23)/f/h19-20H 3C5EC4BB713BA924