Mercaptoalcylamino acids are generally susceptible to inactivation by {TAIL ~ oxidation} in vivo and decomposition in process of manufacturing themselves or their preparations or with the elapse of time because of {HEAD ~ the compounds} having chemically and biologically active sulfhydryl group 
Mercaptoalcylamino acids are generally susceptible to inactivation by { TAIL ~ oxidation } in vivo and decomposition in process of manufacturing themselves or their preparations or with the elapse of time because of { HEAD ~ the compounds } having chemically and biologically active sulfhydryl group
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