N-ε-propargyloxycarbonyl-L-lysine

N-ε-propargyloxycarbonyl-L-lysine (H-L-Lys (Poc) -OH) is a lysine-based unnatural amino acid (UAA) . N-ε-propargyloxycarbonyl-L-lysine is widely used for bio-conjugation of fluorescent probes in diverse organisms from E. coli to mammalian cells even in animals[1][2]. N-ε-propargyloxycarbonyl-L-lysine is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.