Description

H-Lys-Gly-Gly-Lys-Oh is a synthetic tetrapeptide sequence containing two lysine residues separated by a glycyl-glycyl linker. This compound is a valuable building block in peptide synthesis and biochemical research, offering a defined structure for studying molecular interactions and developing novel bioactive compounds. It is primarily utilized by researchers and manufacturers in the pharmaceutical, biotechnology, and life science sectors for applications in drug discovery, proteomics, and as a standard or intermediate.

Application

• Pharmaceutical Research & Development: Serves as a key intermediate or reference standard in the synthesis of longer, more complex therapeutic peptides.
• Biochemical Studies: Used as a model substrate or ligand to investigate enzyme kinetics, protein-protein interactions, and receptor binding mechanisms.
• Proteomics & Diagnostics: Can be employed in the development of assay kits, diagnostic tools, and biomarker discovery platforms.
• Cosmeceutical Applications: Potential use as a component in advanced skincare formulations targeting specific biological pathways.
• Academic Research: A fundamental tool for university and institutional labs studying peptide chemistry, structure-activity relationships, and molecular biology.
• Custom Peptide Synthesis: Acts as a core fragment for the custom production of specialized peptides for client-specific projects.

Basic Information

Product Name	H-Lys-Gly-Gly-Lys-Oh
CAS No.	57625-91-9
Molecular Formula	C16H31N7O5
Molecular Weight	401.46 g/mol
Synonyms	Lys-Gly-Gly-Lys; L-Lysyl-glycyl-glycyl-L-lysine; Glycyl-glycyl-L-lysyl-L-lysine; H-Lys-Gly-Gly-Lys-OH; Tetrapeptide Lys-Gly-Gly-Lys; KGGK peptide; Boc-Lys(Boc)-Gly-Gly-Lys(Boc)-OH (protected form); (S)-2,6-Diamino-N-((S)-1-(((S)-1-amino-6-hydroxy-1-oxohexan-2-yl)amino)-1-oxo-3-(2-((S)-2,6-diamino-1-oxohexan-1-yl)amino)-2-oxoethyl)amino)-1-oxopropan-2-yl)hexanamide (IUPAC)
EINECS	Contact for details

Quality Control

Our H-Lys-Gly-Gly-Lys-Oh is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, MS for identity confirmation, and chiral analysis to ensure stereochemical integrity. We provide full traceability and Certificates of Analysis (COA) are available for all shipments, detailing purity, assay, and impurity profiles to meet the stringent requirements of research and cGMP manufacturing environments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C for long-term stability. This material is hygroscopic (moisture-sensitive); ensure the container is sealed under inert atmosphere or with desiccant after each use to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms
Purity (HPLC)	≥ 95.0%
Assay (Titration)	≥ 98.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 1.0%
Heavy Metals	≤ 20 ppm
Specific Rotation	Contact for details

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