2-amino-4,6-dimethyl-3-oxo-3H-phenoxazine-1,9-dicarboxylic acid 3H-phenoxazine-1,9-dicarboxylic acid, 2-amino-4,6-dimethyl-3-oxo- InChI=1/C16H12N2O6/c1-5-3-4-7(15(20)21)10-13(5)24-14-6(2)12(19)9(17)8(16(22)23)11(14)18-10/h3-4H,17H2,1-2H3,(H,20,21)(H,22,23