L-LYSINE:2HCL (3,3,4,4,5,5,6,6-D8) is a deuterium-labeled lysine amino acid provided as a dihydrochloride salt, featuring the basic lysine side chain with an ε-amino group and a free α-amino and α-carboxyl functional group on the carbon backbone. The molecule bears eight deuterium atoms at the lysine positions indicated by (3,3,4,4,5,5,6,6-D8) and is present in protonated form as the 2HCl salt, which affects solubility and the ionization state of the amino functionalities during handling and analysis. This isotopically labeled amino acid is used in isotopic tracing, quantitative mass spectrometry-based analytical method development, and preparation of labeled peptide or amino-acid derivatives for structure-activity and chemical biology studies where isotopic discrimination is required.
CAT No: L-Iso-0400
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