Description

Copper Pyrithione is an organometallic compound renowned for its potent antimicrobial and antifungal properties. This makes it a critical functional additive for preventing microbial degradation and spoilage in a wide range of industrial and consumer products. It is particularly valued in the paints & coatings, plastics, and personal care industries where long-term product integrity is essential. Our supply of Copper Pyrithione CAS NO 154592-20-8 ensures consistent quality and reliable performance for your formulation needs.

Application

• Paints & Coatings: Acts as a highly effective in-can preservative and dry-film fungicide to prevent mold and algae growth on exterior surfaces.
• Plastics & Polymers: Used as an antimicrobial additive in PVC, polyurethanes, and other polymers to inhibit the growth of bacteria, fungi, and mildew.
• Marine Antifouling: A key biocide in antifouling paints for ships and underwater structures to prevent the attachment of barnacles, algae, and other marine organisms.
• Personal Care & Cosmetics: Employed as a preservative and active ingredient in antidandruff shampoos, soaps, and skincare products.
• Textiles & Fabrics: Imparts durable antimicrobial properties to fabrics, preventing odor-causing bacteria and fungal growth.
• Wood Preservation: Protects treated wood from decay, rot, and stain caused by fungi and microorganisms.
• Adhesives & Sealants: Prevents microbial spoilage in water-based adhesive formulations during storage and in the final cured product.
• Industrial Fluids: Used as a biocide in metalworking fluids, cooling water systems, and other aqueous industrial fluids.

Basic Information

Product Name	Copper Pyrithione
CAS No.	154592-20-8
Molecular Formula	C10H8CuN2O2S2
Molecular Weight	315.86 g/mol
Synonyms	Copper Pyrithione; Copper Omadine; Copper 2-Pyridinethiol-1-oxide; Copper 2-Mercaptopyridine N-oxide; Copper(II) Pyrithione; Bis(2-pyridylthio)zinc 1,1'-dioxide (common misnomer for structure); Kathon 930; Omacide CP
EINECS	Contact for details

Quality Control

Our Copper Pyrithione is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical tests including HPLC for assay, heavy metals analysis, and microbiological testing. A Certificate of Analysis (COA) documenting purity, identity, and key specifications 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, well-ventilated area at room temperature (15-25°C). Keep away from strong acids, strong bases, and oxidizing agents. The container must be kept tightly closed to prevent moisture absorption.

Specification

Item	Specification
Appearance	Green to yellow-green powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 1.0%
Particle Size (Typical)	Pass through 100 mesh

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