Thiol group of reduced glntathione(GSH) was specifieally reacted with 2, 4-dinitroclilorobenzene(DNCB)to give s-substituted dinitrophenyl glutathione as happen (GSH-S-DNP).

• 用二硝基氯苯（DNCB）专一地与谷胱甘肽（GSH）的巯基反应，合成出半抗原GSH－S－DNP。