Description

L-Lysine, L-phenylalanyl-L-asparaginyl-L-tryptophyl-L-α-aspartyl-L-tyrosyl-L-seryl-L-leucyl-L-α-glutamyl-L-α-glutamyl-L-leucyl-L-arginyl-L-α-glutamyl-L-lysyl-L-alanyl-L-lysyl-L-tyrosyl- is a synthetic peptide of significant interest in advanced biomedical research and development. This compound, with CAS number 2135542-85-5, is valued for its specific amino acid sequence which can be engineered for targeted biological interactions. It is primarily utilized by pharmaceutical R&D teams and biotechnology companies focused on novel therapeutic discovery. The precise structure makes it a critical intermediate for developing peptide-based drugs, diagnostic tools, and biochemical probes.

Application

• Pharmaceutical Research & Development: As a key intermediate in the synthesis of novel peptide therapeutics targeting specific receptors or pathways.
• Biochemical Probes: Used in laboratory studies to investigate protein-protein interactions, enzyme mechanisms, and cellular signaling processes.
• Diagnostic Agent Development: Potential use as a component in the design of high-specificity diagnostic assays and imaging agents.
• Peptide Library Synthesis: Serves as a building block for creating diverse peptide libraries used in high-throughput screening for drug discovery.
• Academic Research: Employed in university and institutional labs for fundamental studies in biochemistry, molecular biology, and medicinal chemistry.
• Preclinical Studies: Evaluation of pharmacokinetics, pharmacodynamics, and initial efficacy in animal models for potential new drug candidates.

Basic Information

Product Name	L-Lysine, L-phenylalanyl-L-asparaginyl-L-tryptophyl-L-α-aspartyl-L-tyrosyl-L-seryl-L-leucyl-L-α-glutamyl-L-α-glutamyl-L-leucyl-L-arginyl-L-α-glutamyl-L-lysyl-L-alanyl-L-lysyl-L-tyrosyl-
CAS No.	2135542-85-5
Molecular Formula	C₁₀₈H₁₅₈N₃₀O₃₃
Molecular Weight	~2475.6 g/mol (calculated average)
Synonyms	Lys-Phe-Asn-Trp-Asp-Tyr-Ser-Leu-Glu-Glu-Leu-Arg-Glu-Lys-Ala-Lys-Tyr; H-Lys-Phe-Asn-Trp-Asp-Tyr-Ser-Leu-Glu-Glu-Leu-Arg-Glu-Lys-Ala-Lys-Tyr-OH; KFNWDYSLQEELREKAKY (Single-letter amino acid code); KFNWDYSLQEELREKAKY; Peptide KFNWDYSLQEELREKAKY; 18-mer peptide (Lys1, Tyr18); Custom Synthetic Peptide 2135542-85-5
EINECS	Contact for details

Quality Control

Our synthetic peptides are manufactured under strict quality management systems. Each batch undergoes comprehensive analytical characterization to ensure identity, purity, and consistency. Certificates of Analysis (COA) are provided, detailing results from multiple orthogonal methods including HPLC, MS, and AAA. We support research and development requiring GMP-grade materials and can tailor synthesis and purification to meet specific project specifications.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a freezer. For long-term storage, consider lyophilization and storage as a dry powder at -20°C. The product is hygroscopic (moisture-sensitive); allow the vial to equilibrate to room temperature in a desiccator before opening to prevent condensation and hydrolysis. Aliquot reconstituted solutions to avoid repeated freeze-thaw cycles.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (MS)	Consistent with theoretical molecular weight
Purity (HPLC)	≥ 95%
Assay (AAA)	≥ 98.0% on anhydrous basis
Amino Acid Composition	Within ± 10% of theoretical
Water Content (KF)	≤ 5.0%
Single Impurity (HPLC)	≤ 1.0%
Peptide Content	≥ 80%

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