Description

Phe-Leu-Glu-Glu-Leu is a synthetic pentapeptide composed of the amino acids Phenylalanine, Leucine, and Glutamic Acid. This compound is of significant interest in biochemical research and pharmaceutical development, particularly for studying peptide structure, function, and interactions. It serves as a critical building block or model substrate for researchers in proteomics, enzymology, and medicinal chemistry. Industries requiring high-purity peptide intermediates for advanced R&D will find this product essential for their innovation pipelines.

Application

• Pharmaceutical Research & Development: Used as a key intermediate or reference standard in the synthesis and study of novel therapeutic peptides.
• Biochemical Assay Development: Serves as a substrate or model compound for enzyme activity studies, including protease and peptidase assays.
• Proteomics and Peptide Mapping: Employed as a standard in mass spectrometry (MS) and high-performance liquid chromatography (HPLC) for method calibration and peptide identification.
• Academic & Institutional Research: A vital tool for universities and research institutes studying protein folding, peptide-protein interactions, and signal transduction pathways.
• Cosmeceutical Ingredient Research: Investigated for potential bioactive properties in advanced skincare and cosmetic formulations.
• Nutraceutical Development: Explored as a potential bioactive peptide component in functional food and dietary supplement research.

Basic Information

Item	Detail
Product Name	Phe-Leu-Glu-Glu-Leu
CAS No.	69729-06-2
Molecular Formula	C33H49N5O11
Molecular Weight	691.77 g/mol
Synonyms	Phenylalanyl-leucyl-glutamyl-glutamyl-leucine; FLEEL; FLEEL Peptide; H-Phe-Leu-Glu-Glu-Leu-OH; Pentapeptide FLEEL; L-Phenylalanyl-L-leucyl-L-α-glutamyl-L-α-glutamyl-L-leucine; (S)-2-((S)-2-((S)-2-((S)-2-Amino-3-phenylpropanamido)-4-methylpentanamido)-4-carboxybutanamido)pentanedioic acid
EINECS	Contact for details

Quality Control

Our Phe-Leu-Glu-Glu-Leu is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and mass spectrometry for identity confirmation, to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) detailing all specifications are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under dry, inert conditions to maintain stability and purity. For long-term storage, consider desiccated conditions at -20°C.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms to reference standard
Purity (HPLC)	≥ 95.0%
Single Impurity (HPLC)	≤ 2.0%
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.