Dimethyl L-cystinate dihydrochloride

Dimethyl L-cystinate dihydrochloride is a high-purity amino-acids supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.

Dimethyl L-cystinate dihydrochloride (CAS 32854-09-4) is a key intermediate in peptide chemistry, pharmaceutical synthesis, and biochemical research. It is derived from L-cystine, featuring esterified carboxyl groups and a preserved disulfide bond, which makes it highly useful in the design of cysteine-containing peptides, peptide mimetics, and biologically active molecules. The compound serves as a protected form of cystine that facilitates incorporation into peptides through solid-phase or solution-phase synthesis. In pharmaceutical development, it is often employed as a chiral building block for drugs, enzyme inhibitors, and other sulfur-containing biomolecules. Additionally, its controlled reactivity allows for the study of redox mechanisms, disulfide bond formation, and protein folding in biochemical and structural biology research.

The benefits of Dimethyl L-cystinate dihydrochloride lie in its balance between stability and reactivity. The esterification of carboxyl groups enhances solubility in organic solvents and prevents undesired side reactions during coupling processes, while the disulfide linkage maintains the functional sulfur chemistry of cystine. Its dihydrochloride form offers improved handling, storage stability, and solubility in aqueous environments. The compound's chirality ensures stereochemical fidelity in synthetic peptides and bioactive compounds, contributing to high biological specificity. Moreover, it provides a convenient route for the introduction of sulfur bridges and thio-functionalities, which are essential for maintaining structural and biological activity in proteins and enzymes.

Dimethyl L-cystinate dihydrochloride is a versatile and reliable intermediate for advanced peptide and pharmaceutical synthesis. Its well-balanced reactivity, stereochemical purity, and solubility properties make it an indispensable reagent in both academic and industrial research. By enabling efficient incorporation of cystine motifs and facilitating studies of disulfide chemistry, this compound continues to play a crucial role in the development of structurally and functionally significant biomolecules.

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