Description

Poly-L-Tyrosine is a high-purity synthetic polypeptide composed of the amino acid L-tyrosine. This compound serves as a critical reference standard and biochemical tool for research and development in life sciences. It is essential for scientists and manufacturers in the pharmaceutical, biotechnology, and diagnostic sectors who require precise biomaterials for analytical calibration, enzymatic studies, and polymer science applications.

Application

• Biochemical Research & Reference Standard: Used as a calibration standard in HPLC, mass spectrometry, and other analytical techniques for protein and peptide analysis.
• Enzyme Substrate & Inhibition Studies: Serves as a substrate for studying tyrosine kinases, phosphatases, and other enzymes involved in signal transduction pathways.
• Polymer Science & Biomaterials: Acts as a building block for synthesizing bio-compatible polymers, hydrogels, and drug delivery systems due to its phenolic side chain.
• Diagnostic Reagent Development: Employed in the formulation of immunoassays and biosensors where tyrosine residues are key for conjugation or detection.
• Cell Culture & Neuroscience Research: Utilized in studies of neurotransmitter synthesis (as a precursor to dopamine, norepinephrine) and neuronal cell behavior.
• Cosmetic & Personal Care Actives: Incorporated into advanced skincare formulations for its potential antioxidant properties and role in melanin synthesis pathways.

Basic Information

Product Name	Poly-L-Tyrosine
CAS No.	25619-78-7
Molecular Formula	(C9H11NO3)n
Molecular Weight	Variable (based on polymerization degree 'n')
Synonyms	Poly(tyrosine); L-Tyrosine homopolymer; P(Tyr); Polytyrosine; H-Tyr-OH homopolymer; Poly(L-tyrosine); PLT; Poly(4-hydroxyphenylalanine)
EINECS	Contact for details

Quality Control

Our Poly-L-Tyrosine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications such as polymerization degree, amino acid composition, and impurity profiles are 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 for long-term stability. This material is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0% (as L-tyrosine polymer)
Amino Acid Analysis	L-Tyrosine ≥ 98.0% of total amino acids
Water Content (KF)	≤ 5.0 %
Residue on Ignition	≤ 1.0 %
Heavy Metals	≤ 20 ppm

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