2-(2-nitrophenyl)quinolin-5-ol 5-quinolinol, 2-(2-nitrophenyl)- InChI=1/C15H10N2O3/c18-15-7-3-5-12-11(15)8-9-13(16-12)10-4-1-2-6-14(10)17(19)20/h1-9,18