Description

Poly-Dl-Lysine Hydrobromide is a synthetic polyamino acid salt widely used as a versatile cationic polymer and cell culture reagent. Its primary value lies in its ability to promote cell adhesion to surfaces, making it a critical component in biomedical and life science research. This product is essential for researchers and manufacturers in the biotechnology, pharmaceutical, and diagnostic industries who require reliable, high-purity substrates for cell-based assays and tissue engineering.

Application

• Cell Culture Substrate Coating: Used to coat glass or plastic surfaces to enhance the attachment and growth of a wide variety of mammalian cells, including primary cells and difficult-to-culture lines.
• Biomedical Research: Serves as a standard reagent for in vitro studies involving cell proliferation, differentiation, and toxicity testing.
• Diagnostic Kit Manufacturing: Employed in the production of diagnostic slides and microarrays where consistent cell or tissue adhesion is required.
• Neuroscience Studies: Frequently used to coat coverslips and dishes for neuronal cell culture, facilitating neurite outgrowth and network formation.
• Tissue Engineering Scaffolds: Acts as a preliminary coating on synthetic or natural scaffolds to improve cell seeding efficiency and initial biocompatibility.
• Microscopy: Provides a charged surface to immobilize cells or biomolecules for various microscopic techniques, including fluorescence and confocal microscopy.

Basic Information

Item	Detail
Product Name	Poly-Dl-Lysine Hydrobromide
CAS No.	61686-25-7
Molecular Formula	(C6H14N2O2 • HBr)n
Molecular Weight	Contact for details
Synonyms	Poly(D-lysine hydrobromide); Poly(L-lysine hydrobromide) DL-form; PDL; PDLL; Poly(lysine) hydrobromide; ε-Polylysine hydrobromide; Poly-DL-lysine HBr; Poly-DL-lysine · HBr
EINECS	Contact for details

Quality Control

Our Poly-Dl-Lysine Hydrobromide is manufactured under a quality management system and undergoes rigorous analytical testing to ensure batch-to-batch consistency and high performance for sensitive applications. While not a compendial item, quality is assured against stringent in-house specifications focusing on biological suitability. A Certificate of Analysis (COA) detailing purity, molecular weight range, and biological performance testing is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (refrigerated) for long-term stability. This material is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder or solid
Identification (IR)	Conforms to structure
Assay (Polylysine Base)	≥ 95.0%
Molecular Weight Range	1,000 - 4,000 Da (Other ranges available)
pH (1% solution)	5.0 - 7.0
Loss on Drying	≤ 5.0 %
Biological Performance (Cell Adhesion)	Passes test

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