DL-METHIONINE (1-13C) is a stable-isotope-labeled methionine derivative belonging to the proteinogenic amino acids, featuring a thioether-containing side chain and the standard amino acid backbone with an amino group and a carboxyl group. The molecule bears a single 13C label at the position indicated by the product name and is provided as the DL stereochemical mixture, which corresponds to both enantiomeric forms of methionine while maintaining the characteristic thioether functionality. In biochemical and analytical workflows, the labeled amino acid is used as an isotopic tracer or reference material for mass spectrometry and related labeling studies, and it can serve as a defined building block for preparing methionine-containing peptides or peptide analogs where the 13C label is retained for structural or compositional analysis.
CAT No: L-Iso-0424
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