Description

Lys-Lys-Gly-Glu CAS NO 72189-84-5 is a synthetic tetrapeptide composed of two lysine residues, glycine, and glutamic acid, offering a unique sequence for advanced biochemical research and development. This compound is valued for its role as a specialized building block in peptide synthesis and as a model substrate for studying enzymatic activity and protein-protein interactions. It is primarily utilized by research institutions and pharmaceutical companies focused on proteomics, drug discovery, and the development of novel therapeutic peptides.

Application

• Biochemical Research: Used as a standard or substrate in enzymatic assays to study protease and peptidase activity.
• Pharmaceutical Development: Serves as a key intermediate in the solid-phase synthesis of larger, more complex therapeutic peptides.
• Proteomics & Diagnostics: Employed in the development of calibration standards for mass spectrometry and other analytical techniques.
• Nutritional Science: Investigated for its potential as a bioactive peptide precursor in specialized nutraceutical formulations.
• Cosmetic Peptides: Explored as a potential raw material for the development of anti-aging or skin-conditioning peptide actives.

Basic Information

Product Name	Lys-Lys-Gly-Glu
CAS No.	72189-84-5
Molecular Formula	C20H36N6O7
Molecular Weight	472.54 g/mol
Synonyms	L-Lysyl-L-lysylglycyl-L-glutamic acid; Lys-Lys-Gly-Glu-OH; H-Lys-Lys-Gly-Glu-OH; Tetrapeptide LLGE; Glycine, L-glutamylglycyl-L-lysyl-L-lysyl-; (2S)-2-[[(2S)-2,6-diaminohexanoyl]amino]-6-[[2-[[(4S)-4-amino-4-carboxybutanoyl]amino]acetyl]amino]hexanoic acid
EINECS	Contact for details

Quality Control

Our Lys-Lys-Gly-Glu is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and MS for identity confirmation, to ensure it meets the high standards required for research and development applications. Certificates of Analysis (COA) with detailed chromatographic data are available upon request.

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 product is hygroscopic (moisture-sensitive) and should be handled under dry conditions to prevent degradation.

Specification

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

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