Description

L-Cysteine, L-Arginyl-L-Alanyl-L-Cysteinyl-L-Arginyl-L-Phenylalanyl-L-Phenylalanyl- CAS NO 1774344-28-3 is a specialized, high-purity synthetic peptide derivative of the amino acid L-Cysteine. This compound is engineered to provide enhanced stability and targeted bioactivity for advanced research and development applications. It is primarily utilized by biopharmaceutical and life science research organizations focused on peptide therapeutics, biochemical studies, and high-value specialty formulations.

Application

• Pharmaceutical Research & Development: As a key intermediate or active pharmaceutical ingredient (API) in the development of novel peptide-based therapeutics.
• Biochemical Research: For studying enzyme-substrate interactions, protein folding, and redox biology due to its cysteine-derived thiol group.
• Cosmeceutical Formulations: Incorporated into advanced skincare products for its potential antioxidant and cell-signaling properties.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method validation in analytical laboratories.
• Specialty Nutrition: Potential use in high-end nutraceutical research for targeted nutritional supplements.

Basic Information

Product Name	L-Cysteine, L-Arginyl-L-Alanyl-L-Cysteinyl-L-Arginyl-L-Phenylalanyl-L-Phenylalanyl-
CAS No.	1774344-28-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Cys-Arg-Ala-Cys-Arg-Phe-Phe; Cys(R)-Arg-Ala-Cys(R)-Arg-Phe-Phe; L-Cys-L-Arg-L-Ala-L-Cys-L-Arg-L-Phe-L-Phe; H-Cys-Arg-Ala-Cys-Arg-Phe-Phe-OH; Cyclic Cysteine Peptide Derivative; Heptapeptide Cys-Arg-Ala-Cys-Arg-Phe-Phe; CAS 1774344-28-3
EINECS	Contact for details

Quality Control

Our L-Cysteine, L-Arginyl-L-Alanyl-L-Cysteinyl-L-Arginyl-L-Phenylalanyl-L-Phenylalanyl- is manufactured under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets rigorous research-grade specifications. Certificates of Analysis (COA) with detailed chromatographic data are provided for every shipment to guarantee traceability and consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a freezer. Due to its hygroscopic and easily oxidized nature, the product should be handled under an inert atmosphere (e.g., nitrogen or argon) when opened and aliquoted to prevent moisture uptake and oxidative degradation. Allow the sealed container to equilibrate to room temperature before opening to minimize condensation.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms
Purity (HPLC)	≥ 95.0%
Single Impurity (HPLC)	≤ 2.0%
Water Content (KF)	≤ 5.0%
Heavy Metals	≤ 20 ppm

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