Description

Fa-Phe-Phe-Arg-Oh CAS NO 86064-76-8 is a synthetic peptide sequence, specifically a tetrapeptide derivative featuring phenylalanine (Phe) and arginine (Arg) residues with a formyl (Fa) group. This compound is a critical building block and research tool in peptide synthesis and pharmaceutical development. It is primarily utilized by researchers and manufacturers in the fields of medicinal chemistry, biochemistry, and peptide-based drug discovery for creating novel therapeutic agents and studying biological pathways.

Application

• Pharmaceutical Intermediate: Serves as a key synthetic precursor in the development of novel peptide-based drugs and active pharmaceutical ingredients (APIs).
• Biochemical Research: Used as a substrate or inhibitor in enzymatic studies and for investigating protease activity and specificity.
• Medicinal Chemistry: Acts as a core scaffold for structure-activity relationship (SAR) studies to optimize potency and selectivity of therapeutic candidates.
• Peptide Library Synthesis: Employed in the combinatorial synthesis of peptide libraries for high-throughput screening against biological targets.
• Standards & Calibration: Functions as a high-purity reference standard in analytical methods such as HPLC and mass spectrometry for quality control.

Basic Information

Product Name	Fa-Phe-Phe-Arg-Oh
CAS No.	86064-76-8
Molecular Formula	C31H38N6O5
Molecular Weight	574.67 g/mol
Synonyms	N-Formyl-L-phenylalanyl-L-phenylalanyl-L-arginine; Formyl-Phe-Phe-Arg-OH; F-Phe-Phe-Arg-OH; N-For-Phe-Phe-Arg-OH; L-Phenylalanyl-L-phenylalanyl-N5-[(aminoiminomethyl)amino]-N2-formyl-L-ornithine; Fa-Phe-Phe-Arg; F-PFR-OH; N-Formyl-PFR
EINECS	Contact for details

Quality Control

Our Fa-Phe-Phe-Arg-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. Certificates of Analysis (COA) detailing all specifications are provided to guarantee compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C or as indicated on the label. This product is hygroscopic (moisture-sensitive) and should be handled under dry conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms to reference standard
Purity (HPLC)	≥ 95.0%
Assay	≥ 97.0% (on anhydrous basis)
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.