Wiktionary
trifluoromethanesulfonyl azide
n. (context organic chemistry English) An organic azide used as a reagent in organic synthesis, usually prepared by reacting trifluoromethanesulfonic anhydride with sodium azide.
Wikipedia
Trifluoromethanesulfonyl azide
Trifluoromethanesulfonyl azide or triflyl azide is an organic azide used as a reagent in organic synthesis.