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

(2R,4R) -H-D-Pro (4-N3) -OH (hydrochloride) is a click chemistry reagent featuring an azide group that enables it to undergo copper-catalyzed azide-alkyne cycloaddition reactions (CuAAc) with molecules containing alkyne groups. Additionally, it can participate in strain-promoted alkyne-azide cycloaddition reactions (SPAAC) with molecules that have DBCO or BCN groups.