Description

Zinc Pyrithione (CAS NO 13463-41-7) is a highly effective, broad-spectrum antimicrobial and antifungal agent widely used for its excellent stability and safety profile. Its primary value lies in its potent ability to inhibit the growth of bacteria and fungi, making it a critical ingredient for preserving product integrity and ensuring user safety. This compound is essential for manufacturers in the personal care, coatings, and industrial preservation sectors seeking reliable and long-lasting antimicrobial performance.

Application

• Anti-Dandruff Hair Care Products: A key active ingredient in shampoos, conditioners, and scalp treatments to control Malassezia fungus and reduce flaking.
• Cosmetic Preservation: Used as a preservative in creams, lotions, and other leave-on or rinse-off formulations to prevent microbial spoilage.
• Paints and Coatings: Incorporated into water-based paints, adhesives, and sealants to provide in-can preservation and dry-film protection against mold and mildew.
• Textile and Fabric Treatment: Applied to impart durable antimicrobial properties to fabrics, preventing odor-causing bacteria in sportswear and home textiles.
• Industrial Biocide: Used in cooling water systems, pulp and paper production, and metalworking fluids to control microbial growth.
• Marine Antifouling Agents: An active component in antifouling paints for boats and underwater structures to prevent the attachment of algae and barnacles.

Basic Information

Product Name	Zinc Pyrithione
CAS No.	13463-41-7
Molecular Formula	C10H8N2O2S2Zn
Molecular Weight	317.70 g/mol
Synonyms	Zinc Pyrithione; Zinc 2-Pyridinethiol-1-oxide; Zinc Omadine; Pyrithione Zinc; ZPT; Bis(2-pyridylthio)zinc 1,1'-dioxide; Zinc pyridine-2-thiol-1-oxide
EINECS	236-671-3

Quality Control

Our Zinc Pyrithione is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets stringent specifications for purity, potency, and heavy metal content. Certificates of Analysis (COA) are provided with every shipment, documenting compliance with relevant standards for cosmetic and industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to pale yellow powder
Identification (IR)	Conforms
Assay (Zinc Pyrithione)	≥ 95.0 %
Loss on Drying	≤ 1.0 %
Residue on Ignition (Sulfated Ash)	≤ 1.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Particle Size (Typical, D50)	Contact for details

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