Description

Fmoc-Lys(Boc)-Leu-Oh CAS NO 250695-63-7 is a protected dipeptide building block essential for solid-phase peptide synthesis (SPPS). This compound is critical for researchers and manufacturers requiring high-purity intermediates to construct complex peptides with precise sequence control. It is primarily used by pharmaceutical R&D teams, biotechnology companies, and CROs/CDMOs developing therapeutic peptides, diagnostic agents, and biochemical tools.

Application

• Solid-Phase Peptide Synthesis (SPPS): A key protected intermediate for the sequential assembly of longer peptide chains using Fmoc chemistry.
• Therapeutic Peptide Development: Used in the research and production of peptide-based drugs targeting metabolic disorders, oncology, and infectious diseases.
• Bioconjugation and Labeling: Serves as a precursor for creating peptide conjugates with reporter molecules, polymers, or other bioactive agents.
• Biochemical Research: Employed in studying protein-protein interactions, enzyme substrates, and receptor ligands.
• Antibiotic Peptide Mimetics: A building block for designing novel antimicrobial peptides (AMPs) with enhanced stability.
• Custom Peptide Service Production: A standard reagent for contract research and manufacturing organizations (CROs/CDMOs) offering bespoke peptide synthesis.

Basic Information

Product Name	Fmoc-Lys(Boc)-Leu-Oh
CAS No.	250695-63-7
Molecular Formula	C₃₂H₄₃N₃O₇
Molecular Weight	581.70 g/mol
Synonyms	Fmoc-Lys(Boc)-Leu-OH; N-α-Fmoc-N-ε-Boc-L-lysyl-L-leucine; Fmoc-Lys(Boc)-Leu; Fmoc-L-Lys(Boc)-L-Leu-OH; (9H-Fluoren-9-yl)methyl N-[(2S)-6-{[(2-methylpropan-2-yl)oxy]carbonyl}amino-1-{[(2S)-1-hydroxy-4-methyl-1-oxopentan-2-yl]amino}-1-oxohexan-2-yl]carbamate; Fmoc-Lys(Boc)-Leucine; Boc-Lys(Fmoc)-Leu-OH; Fmoc-Lys(Boc)-Leu-Oh CAS NO 250695-63-7
EINECS	Contact for details

Quality Control

Our Fmoc-Lys(Boc)-Leu-Oh is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for peptide synthesis. Certificates of Analysis (COA) with detailed chromatographic data are available upon request to support your quality assurance and regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to maintain stability and purity. For long-term storage, consider desiccated conditions.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥98.0%
Optical Rotation	-20° to -25° (c=1 in DMF)
Water Content (KF)	≤1.0%
Single Impurity (HPLC)	≤0.5%
Total Impurities (HPLC)	≤2.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.