In the chemical and pharmaceutical industries, CAS (Chemical Abstracts Service) numbers are the universal identifiers for chemical substances. For researchers and procurement specialists, knowing the correct CAS number is essential for accurately identifying, sourcing, and purchasing compounds. Today, we focus on Fmoc-HomoArg(Pbf)-OH, a vital protected amino acid derivative, and its associated CAS number: 401915-53-5.

Fmoc-HomoArg(Pbf)-OH (N-alpha-Fmoc-N-omega-(2,2,4,6,7-pentamethyldihydrobenzofuran-5-sulfonyl)-L-homoarginine) is a critical building block in solid-phase peptide synthesis, particularly when using the Fmoc strategy. The presence of the Fmoc group on the alpha-amino terminus and the Pbf group on the guanidino side chain of homoarginine provides orthogonal protection, allowing for precise control during peptide chain elongation. This makes it indispensable for synthesizing peptides with complex structures, often required in drug discovery and development.

When you need to buy chemical compounds, referencing the CAS number 401915-53-5 ensures you are procuring the correct specification of Fmoc-HomoArg(Pbf)-OH. As a leading supplier and manufacturer based in China, we understand the importance of accurate identification. Our product, identified by this CAS number, consistently meets high purity standards, typically 95% or greater by HPLC, and is presented as a white to slight yellow to beige powder.

For many research and development projects, securing a reliable supply of this chemical is as important as its purity. Procurement managers often look for manufacturers who can provide this compound at competitive prices, especially for larger quantities. Working directly with a manufacturer can streamline the purchasing process and offer better cost efficiencies. If your work involves peptide synthesis, whether for academic research or industrial applications, understanding where to purchase high-quality Fmoc-HomoArg(Pbf)-OH is key.

The significance of the Pbf group in Fmoc-HomoArg(Pbf)-OH cannot be overstated. It effectively shields the guanidino moiety from unwanted reactions during peptide coupling steps, only to be cleaved off in the final stage of synthesis along with other side-chain protecting groups. This specific protection strategy contributes to the overall success and fidelity of the synthesized peptide.

In summary, the CAS number 401915-53-5 specifically refers to Fmoc-HomoArg(Pbf)-OH, a critical reagent for peptide synthesis. By understanding its chemical properties and sourcing from reputable manufacturers and suppliers, you can ensure the quality and efficiency of your research and production. If you are seeking to purchase this compound, we are a dedicated supplier ready to meet your needs.