The pharmaceutical industry is constantly striving for innovation, developing new drugs and therapies that improve human health. At the heart of this endeavor lies the complex process of chemical synthesis, where precisely engineered molecules serve as the building blocks for life-saving medications. Among these crucial intermediates, N-alpha-(tert-Butoxycarbonyl)-L-lysine (Boc-Lys-OH, CAS 13734-28-6) plays a significant role, particularly due to its protected amino group and versatile lysine side chain.

Boc-Lys-OH is an essential protected amino acid derivative that is extensively used in the synthesis of peptides, which are increasingly important as therapeutic agents. The tert-butoxycarbonyl (Boc) protecting group on the alpha-amino function is key. It selectively masks this reactive site, enabling controlled coupling reactions during peptide chain elongation. This precision is vital in pharmaceutical manufacturing, where the exact sequence and integrity of peptide-based drugs are critical for efficacy and safety. Researchers and manufacturers often buy Boc-L-lysine online to incorporate it into these complex synthetic pathways.

The chemical identity of Boc-Lys-OH, with its molecular formula C11H22N2O4 and molecular weight of 246.30 g/mol, makes it a well-characterized intermediate. Its typical presentation as a white powder further simplifies its handling and integration into synthetic processes. For pharmaceutical applications, a high purity level, typically 95% or above, is non-negotiable. This high purity ensures that the final drug product is free from potentially harmful impurities that could arise from side reactions or contaminants in the starting materials.

As a pharmaceutical intermediate, Boc-Lys-OH is not just limited to peptide drugs. Its structure, featuring both an alpha-amino group and a side-chain epsilon-amino group, provides multiple points for chemical modification. This versatility allows it to be incorporated into the synthesis of a broad range of small molecule drugs, prodrugs, and drug delivery systems. The ability to selectively deprotect the Boc group under mild acidic conditions adds another layer of synthetic flexibility.

For pharmaceutical companies and contract manufacturing organizations, sourcing reliable Boc-L-lysine from established manufacturers, including those in China, is paramount. A consistent supply of high-quality material, backed by robust quality control and documentation such as Certificates of Analysis (COAs), is essential for GMP compliance and the successful development of pharmaceutical products. The price point also becomes a consideration as production scales up.

In conclusion, N-alpha-(tert-Butoxycarbonyl)-L-lysine is a vital pharmaceutical intermediate. Its protected amino acid structure and the inherent reactivity of lysine make it an indispensable tool for synthesizing complex peptide therapeutics and various other drug molecules. Ensuring a stable and high-quality supply is a critical factor for success in the demanding pharmaceutical manufacturing landscape.