N'-Cbz-L-lysine tert-butyl ester HCl | Bulk Supplier
The pharmaceutical landscape is shifting towards complex peptide therapeutics, where the reliability of every Protected Lysine Derivative determines final drug efficacy. Recent advancements in chemoenzymatic synthesis, such as those required for heterotypic ubiquitin chains, highlight the critical need for orthogonal protection strategies and high-fidelity reagents. While specialized research explores novel masking groups, standard solid-phase peptide synthesis (SPPS) still relies heavily on proven Lysine Building Block solutions that guarantee industrial purity and formulation compatibility. At NINGBO INNO PHARMCHEM CO.,LTD., we understand that scale-up production demands consistency, ensuring that every batch meets rigorous quality assurance standards for global manufacturers.
Detailed Chemical Synthesis Route and Reaction Mechanism
The manufacturing process for this compound involves the selective protection of the epsilon-amino group of L-lysine with a carboxybenzyl (Cbz) group, followed by esterification of the alpha-carboxyl group with isobutylene to form the tert-butyl ester. This orthogonal protection scheme ensures compatibility with Fmoc-SPPS protocols, preventing side reactions during chain elongation. For technical teams requiring deeper insights into the reaction kinetics and optimization parameters, our resource on Cbz-Lys-Otbu Hcl Synthesis Route Industrial Purity provides comprehensive data on yield improvement and impurity control. Maintaining strict control over the hydrochloride salt formation is essential to ensure stability and solubility during the coupling phases of peptide assembly.
Technical Specifications and Analytical Methods
Quality control is paramount for R&D chemists verifying material suitability. Each lot undergoes stringent testing using HPLC, NMR, and mass spectrometry to confirm identity and purity levels. The following table outlines the standard specifications for Cbz-Lys-OtBu HCl:
| Parameter | Specification | Test Method |
|---|---|---|
| CAS Number | 5978-22-3 | Verified |
| Purity (HPLC) | >98.5% | Area Normalization |
| Appearance | White to Off-White Powder | Visual |
| Optical Rotation | [α]D20 +20° to +24° | Polarimetry |
| Loss on Drying | <0.5% | Karl Fischer |
Documentation including a batch-specific COA is available to support regulatory filings and internal quality audits.
Factory-Direct Bulk Pricing Advantages and Supply Chain Stability
Procurement executives prioritize cost-efficiency without compromising on quality assurance. By leveraging our integrated manufacturing capabilities, we offer competitive bulk price structures that support large-scale scale-up production needs. Our supply chain is robust against market fluctuations, ensuring timely delivery of N'-Cbz-L-lysine tert-butyl ester hydrochloride for continuous operations. NINGBO INNO PHARMCHEM CO.,LTD. is committed to being a reliable global manufacturer, providing technical support to streamline your sourcing process.
Selecting the right supplier is crucial for maintaining the integrity of your peptide synthesis workflow. With verified specifications and stable logistics, we empower your team to focus on innovation.
To request a batch-specific COA, SDS, or secure a bulk pricing quote, please contact our technical sales team.