Description

Arg-Lys-Arg-Ala-Arg-Lys-Glu is a synthetic heptapeptide composed of the amino acids arginine, lysine, alanine, and glutamic acid. This sequence is of significant interest in biochemical and pharmaceutical research due to its potential role in cell-penetrating and membrane-interactive applications. It serves as a critical intermediate and research tool for scientists in the fields of peptide therapeutics, drug delivery systems, and molecular biology.

Application

• Pharmaceutical Research & Development: Used as a key intermediate in the synthesis of novel peptide-based drugs and therapeutic candidates.
• Drug Delivery Systems: Investigated for its cell-penetrating peptide (CPP) properties to enhance the cellular uptake of conjugated drugs or nucleic acids.
• Biochemical Studies: Serves as a model peptide for studying protein-protein interactions, enzyme substrates, and signal transduction pathways.
• Cosmeceutical Applications: Potential use in advanced skincare formulations targeting specific cellular processes due to its bioactive peptide sequence.
• Diagnostic Reagent Development: Can be utilized in the development of immunoassays or as a labeled probe for diagnostic imaging.
• Academic & Institutional Research: A vital reagent for universities and research institutes conducting fundamental life science research.

Basic Information

Product Name	Arg-Lys-Arg-Ala-Arg-Lys-Glu
CAS No.	82801-73-8
Molecular Formula	C34H66N18O10
Molecular Weight	863.0 g/mol
Synonyms	RKRARKG; H-Arg-Lys-Arg-Ala-Arg-Lys-Glu-OH; L-Arginyl-L-lysyl-L-arginyl-L-alanyl-L-arginyl-L-lysyl-L-glutamic acid; Heptapeptide RKRARKG; CPP sequence RKRARKG; Cell-penetrating peptide fragment; 82801-73-8
EINECS	Contact for details

Quality Control

Our Arg-Lys-Arg-Ala-Arg-Lys-Glu is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and MS for identity confirmation, to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) detailing purity, identity, and other critical parameters are available upon request.

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 prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms
Purity (HPLC)	≥ 95.0%
Single Impurity (HPLC)	≤ 1.0%
Amino Acid Composition	Conforms to theoretical values
Water Content (KF)	≤ 5.0%

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