Description

Polylysine is a cationic homopolymer of the essential amino acid L-lysine, widely recognized for its potent antimicrobial and film-forming properties. This biopolymer is highly valued for its natural origin, biodegradability, and effectiveness as a preservative and functional additive. It serves critical roles in the food and beverage, cosmetic, and pharmaceutical industries, where it enhances product safety, stability, and performance. Our supply of Polylysine CAS NO 38000-06-5 ensures consistent quality and reliable availability for industrial applications.

Application

• Food & Beverage Preservation: Used as a natural antimicrobial agent to extend shelf-life in cooked rice, noodles, salads, and ready-to-eat meals.
• Cosmetic Formulations: Functions as a conditioning agent, film-former, and preservative booster in shampoos, skin creams, and lotions.
• Pharmaceutical & Biomedical: Employed in drug delivery systems, as a coating material for medical devices, and in tissue engineering scaffolds.
• Agricultural Products: Acts as a biopesticide or coating agent for seeds and fertilizers to improve efficacy and reduce spoilage.
• Biotechnology Research: Utilized as a cell-adhesive coating for culture dishes and in biochemical assays.
• Industrial Coatings: Serves as a component in biodegradable films and functional surface coatings.

Basic Information

Item	Details
Product Name	Polylysine
CAS No.	38000-06-5
Molecular Formula	(C6H12N2O)n
Molecular Weight	Variable (Polymer)
Synonyms	Poly(L-lysine); ε-Polylysine; ε-PL; Poly-L-lysine; Poly(lysine); Poly-L-lysine hydrobromide; L-Lysine homopolymer; (S)-Poly(imino(1-oxo-1,6-hexanediyl)); Antimicrobial peptide ε-polylysine
EINECS	Contact for details

Quality Control

Our Polylysine is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets the required specifications for purity, molecular weight distribution, and microbiological quality. Certificates of Analysis (COA) documenting these results are provided and can be tailored to meet specific customer or regulatory requirements, including those for food-grade (FCC) and cosmetic applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to light yellow powder or hygroscopic solid
Identification (IR)	Conforms
Assay (Polylysine Content)	≥ 95.0% (on dried basis)
Loss on Drying	≤ 5.0%
Residue on Ignition (Sulfated Ash)	≤ 1.0%
Heavy Metals (as Pb)	≤ 10 ppm
Microbiological Analysis	Total Plate Count: ≤ 1000 CFU/g; Yeast & Mold: ≤ 100 CFU/g; Absence of E. coli and Salmonella

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