DL-LYSINE:HCL (15N2) is a hydrochloride salt form of the amino acid lysine labeled with two 15N atoms, existing as a DL (racemic) mixture of stereoisomers with a basic aliphatic side chain. The molecule contains a free amino group and a carboxyl group, while the ε-amino functionality on the lysine side chain is protonated under hydrochloride conditions, providing a cationic handle for salt formation and analytical differentiation. As an isotopically labeled lysine derivative, it is used in isotopic tracing, mass spectrometry and NMR method development, and peptide or protein labeling workflows where incorporation of 15N-labeled nitrogen into lysine-containing structures is required.
CAT No: L-Iso-0413
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