L-METHIONINE (1-13C; METHYL-D3) is an isotopically labeled, proteinogenic amino acid belonging to the thioether-containing class, bearing a side chain with a thioether methyl group. The molecule retains the free amino and carboxyl functional groups of methionine while incorporating 13C at the specified position and deuterium (D3) in the methyl group of the thioether, enabling chemically defined isotopic labeling without altering the underlying methionine scaffold. It is employed in peptide and protein labeling workflows, isotopic tracing, and analytical method development such as mass spectrometric quantitation of methionine incorporation or turnover-related studies.
CAT No: L-Iso-0428
1. Immune responses to homocitrulline-and citrulline-containing peptides in rheumatoid arthritis
3. An Open-label, Single-center, Safety and Efficacy Study of Eyelash Polygrowth Factor Serum
4. SERS spectrum of the peptide thymosin‐β4 obtained with Ag nanorod substrate
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From custom peptide synthesis to complex peptide-drug conjugates, we provide flexible, end-to-end services designed to accelerate timelines and ensure regulatory excellence. Our commitment to quality, reliability, and innovation has made us a preferred partner across the pharmaceutical, biotechnology, and personal care industries.
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