The molecule is an S-substituted glutathione in which the thiol hydrogen of glutathione is replaced by a 4-nitrobenzyl group. It is a C-nitro compound, an organic sulfide and a S-substituted glutathione.
(2S)-2-amino-5-[[(2R)-1-(carboxymethylamino)-3-[(4-nitrophenyl)methylsulfanyl]-1-oxopropan-2-yl]amino]-5-oxopentanoic acid