Description

L-Leucine, L-Seryl-L-Isoleucyl-L-Isoleucylglycyl-L-Phenylalanyl-L-α-Glutamyl-L-Lysyl- is a high-purity synthetic peptide of significant interest in advanced biochemical research and development. This compound serves as a critical building block and reference standard for studying protein-protein interactions, enzyme kinetics, and signal transduction pathways. It is primarily utilized by pharmaceutical R&D teams, academic research institutions, and biotechnology companies focused on peptide-based therapeutics and diagnostic tools.

Application

• Pharmaceutical Research & Development: As a key intermediate or reference standard in the discovery and development of novel peptide-based drugs and therapeutic agents.
• Biochemical Assay Development: For use as a substrate, inhibitor, or calibrant in enzymatic assays and high-throughput screening (HTS) platforms.
• Proteomics and Structural Biology: Employed in studies of protein folding, peptide-ligand binding, and the structural analysis of complex biomolecules.
• Academic and Institutional Research: A vital reagent for fundamental research in biochemistry, molecular biology, and cell signaling pathways within university and government laboratories.
• Peptide Synthesis: Used as a protected or unprotected fragment in solid-phase or solution-phase peptide synthesis for creating longer, more complex peptide sequences.
• Diagnostic Reagent Manufacturing: Potential application as a component in the formulation of specific and sensitive diagnostic kits and biomarkers.

Basic Information

Item	Detail
Product Name	L-Leucine, L-Seryl-L-Isoleucyl-L-Isoleucylglycyl-L-Phenylalanyl-L-α-Glutamyl-L-Lysyl-
CAS No.	148274-82-2
Molecular Formula	C46H74N10O13
Molecular Weight	951.1 g/mol
Synonyms	Leu-Ser-Ile-Ile-Gly-Phe-Glu-Lys; L-Leucyl-L-seryl-L-isoleucyl-L-isoleucylglycyl-L-phenylalanyl-L-α-glutamyl-L-lysine; LSIIGFEK; H-Leu-Ser-Ile-Ile-Gly-Phe-Glu-Lys-OH; Peptide LSIIGFEK; CAS 148274-82-2; Heptapeptide LSIIGFEK
EINECS	Contact for details

Quality Control

Our L-Leucine, L-Seryl-L-Isoleucyl-L-Isoleucylglycyl-L-Phenylalanyl-L-α-Glutamyl-L-Lysyl- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity, MS for identity confirmation, and tests for residual solvents and related substances, to ensure it meets the high standards required for research applications. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed in a dry environment to prevent degradation. For long-term storage, consider desiccants or inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms to reference standard
Purity (HPLC)	≥ 95.0%
Single Impurity (HPLC)	≤ 1.0%
Water Content (KF)	≤ 5.0%
Peptide Content	≥ 80.0%
Acetate Content (HPIC)	≤ 10.0%

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