InChI=1/C21H17ClN2O6/c1-11-5-12(2)7-14(6-11)24-20(28)15(19(27)23-21(24)29)8-13-3-4-17(16(22)9-13)30-10-18(25)26/h3-9H,10H2,1-2H3,(H,25,26)(H,23,27,29)/p-2/b15-8+/fC21H15ClN2O6/q-2 392BE9285EB9C386