2-Nitrobenzyl chloride was used in the synthesis of S-(2-nitrobenzyl)cysteine which was inserted into human erythropoietin.It was used to prepare 4,4′-dinitrostillbene. 2-Nitrobenzyl chloride was used in the synthesis of S-(2-nitrobenzyl)cysteine which was inserted into human erythropoietin.It was used to prepare 4,4′-dinitrostillbene.