InChI=1/C13H12N2O3/c1-2-11-12(17-7-16-11)5-8(1)13-9-6-14-4-3-10(9)18-15-13/h1-2,5,14H,3-4,6-7H2/p+1/fC13H13N2O3/h14H/q+1 8BE9C906A038D801