Description

H-Phe-Leu-Ser-Tyr-Lys-Oh CAS NO 147139-72-8 is a synthetic pentapeptide with the sequence Phenylalanine-Leucine-Serine-Tyrosine-Lysine, featuring a free C-terminal carboxylic acid. This compound serves as a crucial building block and research tool in peptide chemistry and pharmaceutical development. It is primarily utilized by researchers and manufacturers in the life sciences sector for applications ranging from biochemical studies to the development of novel therapeutic agents and diagnostic tools.

Application

• Pharmaceutical Research & Development: Used as a key intermediate in the synthesis of longer, more complex peptide-based drug candidates targeting various diseases.
• Biochemical Research: Serves as a model substrate or reference standard in enzymatic studies, receptor-ligand binding assays, and structure-activity relationship (SAR) investigations.
• Peptide Library Synthesis: A valuable component in combinatorial chemistry for creating diverse peptide libraries used in high-throughput screening for drug discovery.
• Antigen Synthesis: Can be employed in the production of peptide antigens for antibody generation and immunological research.
• Cosmeceutical Development: Investigated for potential bioactivity in skincare formulations, given the functional amino acids in its sequence.
• Academic & Institutional Research: Used in university and institutional labs for teaching advanced peptide chemistry and conducting fundamental biological research.

Basic Information

Product Name	H-Phe-Leu-Ser-Tyr-Lys-Oh
CAS No.	147139-72-8
Molecular Formula	C34H49N7O8
Molecular Weight	683.80 g/mol
Synonyms	F-L-S-Y-K-OH; H-Phe-Leu-Ser-Tyr-Lys-OH; Phe-Leu-Ser-Tyr-Lys; Pentapeptide FLYSK; FLSYK; L-Phenylalanyl-L-leucyl-L-seryl-L-tyrosyl-L-lysine; Phenylalanine-Leucine-Serine-Tyrosine-Lysine
EINECS	Contact for details

Quality Control

Our H-Phe-Leu-Ser-Tyr-Lys-Oh is manufactured 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. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment to guarantee traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a dry environment. This product is hygroscopic (moisture-sensitive). Allow the vial to equilibrate to room temperature in a desiccator before opening to minimize moisture uptake.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms
Purity (HPLC)	≥ 95.0%
Single Impurity (HPLC)	≤ 1.0%
Amino Acid Analysis	Conforms
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.