L-CYSTEINE, S-METHYL (S-METHYL-D3) is a cysteine-derived amino acid derivative featuring a thioether side chain in which the cysteine sulfur is methylated, and it retains the amino and carboxyl functional groups characteristic of amino acid frameworks. The molecule bears an S-methyl substituent with deuterium labeling (D3) on the methyl group, providing a defined isotopic composition while preserving the stereochemical designation implied by "L-" for the amino acid backbone. In research workflows, this labeled S-methylated cysteine analogue is used for isotopic tracing, mass spectrometric quantification, and incorporation into chemical biology and peptide-related studies where a chemically modified cysteine side chain and an isotopic handle are required.
CAT No: L-Iso-0192
2. An Open-label, Single-center, Safety and Efficacy Study of Eyelash Polygrowth Factor Serum
3. Adipose tissue is a key organ for the beneficial effects of GLP-2 metabolic function
5. C-Peptide replacement therapy and sensory nerve function in type 1 diabetic neuropathy
If you have any peptide synthesis requirement in mind, please do not hesitate to contact us at . We will endeavor to provide highly satisfying products and services.
Creative Peptides is a trusted CDMO partner specializing in high-quality peptide synthesis, conjugation, and manufacturing under strict cGMP compliance. With advanced technology platforms and a team of experienced scientists, we deliver tailored peptide solutions to support drug discovery, clinical development, and cosmetic innovation worldwide.
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.
Read More