Description

Poly(Lys, Tyr) Hydrobromide is a synthetic polypeptide composed of lysine and tyrosine residues, supplied as the hydrobromide salt. This compound is a critical research-grade material valued for its defined amino acid sequence and consistent physicochemical properties, which are essential for reproducible scientific outcomes. It is primarily utilized by researchers and developers in the fields of biochemistry, peptide chemistry, and materials science for applications ranging from biomimetic studies to the development of novel polymeric materials.

Application

• Biomedical Research: Used as a model polypeptide for studying protein-protein interactions, enzyme kinetics, and peptide self-assembly mechanisms.
• Biomimetic Material Development: Serves as a building block for creating synthetic polymers that mimic natural structural proteins like collagen or elastin.
• Drug Delivery Systems: Investigated as a component in biodegradable polymeric carriers for controlled release of therapeutic agents.
• Surface Modification: Applied to coat surfaces to enhance biocompatibility or to introduce specific functional groups for further chemical conjugation.
• Standard & Calibration: Acts as a reference standard in chromatographic (HPLC) and spectroscopic (NMR, MS) analysis for method development and validation.
• Enzyme Substrate Studies: Employed as a substrate to study the activity and specificity of proteolytic enzymes.

Basic Information

Product Name	Poly(Lys, Tyr) Hydrobromide
CAS No.	41705-04-8
Molecular Formula	(C9H12N2O3 · C6H7NO2)n · xHBr
Molecular Weight	Varies by polymerization degree (n). Contact for details.
Synonyms	Poly(L-lysine-co-L-tyrosine) hydrobromide; Poly(Lys-co-Tyr) HBr; Lysine-Tyrosine Copolymer HBr; Poly(lysine, tyrosine) hydrobromide salt; Synthetic polypeptide (Lys, Tyr) HBr; H-(Lys-Tyr)n-OH · HBr; Poly(oxy[1-(4-hydroxyphenyl)-2-amino-1-oxoethane-1,2-diyl][1-(4-aminobutyl)-2-amino-1-oxoethane-1,2-diyl]) hydrobromide
EINECS	Contact for details.

Quality Control

Our Poly(Lys, Tyr) Hydrobromide is manufactured under controlled conditions to ensure high purity and batch-to-batch consistency, suitable for research applications. Each lot undergoes rigorous analytical testing, including determination of amino acid composition, molecular weight distribution, and purity assessment. A comprehensive Certificate of Analysis (COA) detailing specific test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C. This product is hygroscopic (moisture-sensitive). Allow the container to reach room temperature before opening to minimize moisture absorption.

Specification

Item	Specification
Appearance	White to off-white powder or solid
Identification (IR)	Conforms to structure
Amino Acid Ratio (Lys:Tyr)	As per customer requirement (e.g., 1:1, 4:1)
Assay (Nitrogen)	≥ 95.0%
Moisture Content (KF)	≤ 5.0%
Solubility (Water)	Clear, colorless to slightly yellow solution
Heavy Metals (as Pb)	≤ 20 ppm

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