Description

Arginine-Serine Polymer is a synthetic polypeptide composed of the amino acids arginine and serine. This specialized polymer is valued for its unique cationic and hydrophilic properties derived from its amino acid sequence. It finds significant utility in advanced biomedical research, cosmetic formulations, and as a functional material in specialty applications. The compound is identified by CAS number 107408-09-3.

Application

• Biomedical Research: Used as a model compound for studying cell-penetrating peptides (CPPs), drug delivery systems, and biocompatible materials.
• Cosmetic & Personal Care: Serves as a multifunctional active ingredient or conditioning agent in skincare and haircare products due to its moisturizing and film-forming potential.
• Tissue Engineering: Investigated as a component in scaffolds and hydrogels to promote cell adhesion and growth.
• Bioconjugation & Carrier Systems: Acts as a backbone or linker for attaching therapeutic agents, dyes, or other functional molecules.
• Antimicrobial Coatings: Explored for creating surfaces with inherent antimicrobial activity, leveraging the properties of arginine.
• Nutraceuticals & Supplements: Potential use as a specialized protein source or bioactive peptide in advanced nutritional formulations.

Basic Information

Product Name	Arginine-Serine Polymer
CAS No.	107408-09-3
Molecular Formula	(C9H18N4O2 • C3H7NO3)n
Molecular Weight	Variable (Polymer)
Synonyms	Poly(arginine-co-serine); Arg-Ser Copolymer; Poly(Arg-Ser); Arginine Serine Copolymer; RS Polymer; Poly(L-arginine-co-L-serine); (Arg,Ser) Polymer; CAS 107408-09-3
EINECS	Contact for details

Quality Control

Our Arginine-Serine Polymer is produced under controlled conditions to ensure batch-to-batch consistency. Quality is verified through a suite of analytical techniques including HPLC for purity, amino acid analysis for composition, and spectroscopic methods for structural confirmation. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as molecular weight distribution, residual solvents, and endotoxin levels where applicable. Custom synthesis to meet specific research or GMP-grade requirements is available.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed in a low-humidity environment. For long-term stability, consider storage under desiccant or inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white powder or solid
Identification (IR)	Conforms to structure
Assay (Amino Acid Analysis)	≥ 95.0% (on dried basis)
Arginine/Serine Molar Ratio	As per customer requirement
Molecular Weight (Average)	Specified range (e.g., 1kDa - 20kDa)
Loss on Drying	≤ 5.0 %
Residual Solvents (GC)	Meets ICH guidelines
Heavy Metals	≤ 20 ppm
Bacterial Endotoxins	< 0.5 EU/mg (if applicable)

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