(2R,4S) -H-D-Pro (4-N3) -OH hydrochloride

(2R,4S) -H-D-Pro (4-N3) -OH hydrochloride is a click chemistry reagent that includes an azide group. It can participate in copper-catalyzed azide-alkyne cycloaddition reactions (CuAAC) with molecules containing alkyne groups. Additionally, it is capable of undergoing strain-promoted alkyne-azide cycloaddition reactions (SPAAC) with molecules that have DBCO or BCN groups.