N-ε-propargyloxycarbonyl-L-lysine (H-L-Lys(Poc)-OH) hydrochloride 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. In Vitro Labeling of N-ε-propargyloxycarbonyl-L-lysine (H-L-Lys(Poc)-OH) hydrochloride-carrying cellular proteins, such as Sec61β, Htt74Q and the histone H3 variant H3.3, with a sensitive Raman tag by click chemistry for molecular hyperspectral SRS imaging. MCE has not independently confirmed the accuracy of these methods. They are for reference only. Form:Solid