(S)-2-Hydroxy-3-azidopropanoic acid DCHA is a click chemistry reagent, a chiral alpha-hydroxypropinoic acid, containing azide group. It contains an azide group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing alkyne groups. It can also undergo ring strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing DBCO or BCN groups.
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