Description

Fa-Arg-Leu-Oh CAS NO 158016-08-1 is a high-purity, custom-protected tripeptide derivative, specifically Nα-Fmoc-L-arginyl-L-leucine, designed for advanced peptide synthesis. This compound is a critical building block for researchers and manufacturers developing novel peptide-based pharmaceuticals and biochemical tools. It is essential for professionals in pharmaceutical R&D, biotechnology, and fine chemical synthesis who require reliable, high-quality intermediates for solid-phase and solution-phase peptide assembly.

Application

• Solid-Phase Peptide Synthesis (SPPS): A key protected intermediate for the sequential construction of complex peptide chains, particularly where arginine and leucine residues are required.
• Pharmaceutical Research & Development: Used in the discovery and development of new therapeutic peptides targeting various diseases, including metabolic disorders and cancers.
• Bioconjugation and Probe Development: Serves as a precursor for creating labeled peptides used in diagnostic assays, imaging agents, and targeted drug delivery systems.
• Biochemical Tool Synthesis: Employed to manufacture enzyme substrates, inhibitors, and receptor ligands for biochemical and pharmacological studies.
• Custom Peptide Service Providers: A fundamental raw material for CROs and CDMOs offering bespoke peptide manufacturing services to the global life sciences market.

Basic Information

Product Name	Fa-Arg-Leu-Oh CAS NO 158016-08-1
CAS No.	158016-08-1
Molecular Formula	C30H41N7O6
Molecular Weight	595.70 g/mol
Synonyms	Fmoc-Arg-Leu-OH; N-α-Fmoc-L-arginyl-L-leucine; Fmoc-L-Arg-L-Leu-OH; 9-Fluorenylmethyloxycarbonyl-L-arginyl-L-leucine; N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-arginyl-L-leucine; Fmoc-Arg(Pbf)-Leu-OH (if side-chain protected); Protected Tripeptide Derivative; Peptide Synthesis Building Block
EINECS	Contact for details

Quality Control

Every batch of Fa-Arg-Leu-Oh is manufactured under strict quality management systems. Our products undergo rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency meet the exacting standards required for pharmaceutical research. Certificates of Analysis (COA) detailing all specifications are provided with each shipment to guarantee full traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a freezer. This product is hygroscopic (moisture-sensitive) and should be allowed to equilibrate to room temperature in a dry environment before opening to prevent condensation and hydrolysis. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC)	Conforms
Identification (MS)	Conforms
Purity (HPLC)	≥ 98.0%
Specific Rotation	-20° to -25° (c=1, DMF)
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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