((4-Nitrophenyl)amino)oxoacetic acid 103-94-6 2-12-00-00392 (Beilstein Handbook Reference) 4'-Nitrooxanilic acid 4-Nitrophenyloxamic acid Acetic acid, ((4-nitrophenyl)amino)oxo- BRN 2809447 EINECS 203-160-1 Kyselina N-(4-nitrofenyl)oxamova [Czech] N-(4-Nitrophenyl)oxamic acid NSC 57783 OXANILIC ACID, 4'-NITRO- Oxalyl-p-nitroaniline