Description

H-Met-Cys-Glu-Lys-Oh is a synthetic tetrapeptide with the sequence Methionine-Cysteine-Glutamic Acid-Lysine. This compound is a valuable building block in peptide synthesis and biochemical research, offering a specific sequence that can be used to study protein interactions, enzyme activity, or as a precursor for larger, more complex peptides. It is primarily utilized by researchers and manufacturers in the pharmaceutical, biotechnology, and life science sectors for applications in drug discovery, proteomics, and the development of novel therapeutic agents.

Application

• Pharmaceutical Research & Development: Serves as a critical intermediate or reference standard in the synthesis and study of novel peptide-based therapeutics and diagnostic agents.
• Biochemical Research: Used as a substrate or inhibitor in enzymatic studies to investigate metabolic pathways and protein function.
• Proteomics & Peptide Mapping: Acts as a standard or model peptide for mass spectrometry calibration and protein sequence analysis.
• Cosmeceutical Development: Investigated for potential applications in advanced skincare formulations targeting specific biological pathways.
• Academic Research: Employed in university and institutional labs for fundamental studies in biochemistry, molecular biology, and medicinal chemistry.
• Custom Peptide Synthesis: Used as a starting material or fragment for the custom synthesis of longer, more complex peptide chains for specific client projects.

Basic Information

Product Name	H-Met-Cys-Glu-Lys-Oh
CAS No.	319438-96-5
Molecular Formula	C20H36N6O7S2
Molecular Weight	536.66 g/mol
Synonyms	Methionylcysteinylglutamyllysine; H-Met-Cys-Glu-Lys-OH; MCGK Tetrapeptide; L-Methionyl-L-cysteinyl-L-α-glutamyl-L-lysine; Tetrapeptide MCGK; Met-Cys-Glu-Lys; 319438-96-5; L-Met-L-Cys-L-Glu-L-Lys
EINECS	Contact for details

Quality Control

Our H-Met-Cys-Glu-Lys-Oh is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, MS for identity confirmation, and chiral analysis to ensure sequence integrity. We provide a detailed Certificate of Analysis (COA) with every shipment, documenting the exact specifications. Our quality systems are designed to support research and cGMP-grade manufacturing requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (refrigerated) or as indicated on the label or COA. This product is hygroscopic (moisture-sensitive). Allow the sealed vial to equilibrate to room temperature before opening to minimize moisture uptake.

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%
Heavy Metals	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines
Amino Acid Analysis	Conforms to theoretical composition

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