Dansyl-2-(2-azidoethoxy)ethanamine-d 6 is the deuterium labeled Dansyl-2-(2-azidoethoxy)ethanamine. Dansyl-2-(2-azidoethoxy)ethanamine-d6 is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.