BTTES is a a next-generation, water-soluble ligand for the copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) that accelerates reaction rates and suppresses cell cytotoxicity. The biocompatibility and fast kinetics of BTTES are advancements from water-insoluble TBTA and are desirable for bioconjugation in diverse chemical biology experiments.nAngew. Chem. Int. Ed., 50: 8051-8056(2011)nJ. Am. Chem. Soc. 2010, 132, 47, 16893–16899(2010) Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.