Description Application TMS-N-ethynyl-N,4-dimethylbenzenesulfonamide (TMS-MTYsA) is an air- and moisture-stable ynamide demonstrated to be an efficient and high-yielding coupling reagent for selective amide and peptide bond formation under mild reaction conditions without racemization. The product is supplied as the TMS-protected ynamide, which can be easily deprotected in situ without isolating the product. Packaging 250 mg in glass insert 5 g in glass bottle Other Notes Ynamides as Racemization-Free Coupling Reagents for Amide and Peptide Synthesis