2-[(carboxymethyl)thio]-5-nitrobenzoic acid, S-<2-Carboxy-4-nitro-phenyl>-thioglykolsaeure, 2-Carboxymethylmercapto-5-nitro-benzoesaeure, EINECS 247-970-3, 2-carboxymethylsulfanyl-5-nitro-benzoic acid, 2-<4-Nitro-2-carboxy-phenyl>2-Carboxymethylthio-5-nitrobenzoesaeure