L-LYSINE:2HCL (13C6,D9,15N2) is an isotopically labeled free amino acid salt in which lysine bears six 13C atoms, nine deuterium atoms, and two 15N atoms, with the amino acid present as the dihydrochloride. The molecule contains the lysine primary amino group and the α-amino and α-carboxyl functional groups, while the additional ε-amino side chain is protonated under the hydrochloride salt form, and the stereochemistry is specified as L for the α-center. As a labeled lysine derivative, it is used in isotopic tracing, quantitative mass spectrometric analysis, and peptide or protein labeling workflows where incorporation of a chemically defined, isotopically distinct lysine residue supports structural and compositional studies.
CAT No: L-Iso-0395
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