2-methyl-2-[4-({[(2-methyl-5-nitrophenyl)amino]carbonyl}amino)phenoxy]propanoic acid InChI=1/C18H19N3O6/c1-11-4-7-13(21(25)26)10-15(11)20-17(24)19-12-5-8-14(9-6-12)27-18(2,3)16(22)23/h4-10H,1-3H3,(H,22,23)(H2,19,20,24 propanoic acid, 2-methyl-2-[4-[[[(2-methyl-5-nitrophenyl)amino]carbonyl]amino]phenoxy]-