Description

5-Chloro-2-n-Octyl-4-Isothiazolin-3-One is a highly effective, broad-spectrum biocide belonging to the isothiazolinone class. Its primary value lies in providing powerful, long-lasting protection against microbial growth in a wide range of industrial water-based systems and formulated products. This compound is essential for manufacturers and processors in sectors where microbial contamination can lead to product spoilage, system degradation, and significant economic loss. Its efficacy at low concentrations makes it a cost-effective solution for preservation.

Application

• Industrial Water Treatment: Primary use as a preservative and biocide in cooling water systems, paper mill process water, and metalworking fluids to control bacteria, fungi, and algae.
• Paints, Coatings, and Adhesives: In-can preservation to prevent spoilage and degradation of water-based formulations during storage.
• Personal Care and Cosmetic Products: Used as a preservative in rinse-off formulations, subject to regional regulatory concentration limits and approvals.
• Household and Institutional Cleaners: Preservation of liquid detergents, fabric softeners, and other aqueous cleaning products.
• Oilfield Applications: Microbial control in drilling muds, fracturing fluids, and produced water to prevent souring and biofilm formation.
• Wood Preservation: Protection of timber and wood composites against mold, stain, and decay fungi.
• Leather and Textile Processing: Preservation of process liquors and finished goods.

Basic Information

Item	Details
Product Name	5-Chloro-2-n-Octyl-4-Isothiazolin-3-One
CAS No.	26530-24-5
Molecular Formula	C11H18ClNOS
Molecular Weight	247.78 g/mol
Synonyms	Octhilinone; Kathon 893; 2-n-Octyl-4-isothiazolin-3-one, 5-chloro derivative; OIT; 5-Chloro-2-octyl-4-isothiazolin-3-one; 4-Isothiazolin-3-one, 5-chloro-2-octyl-; Skane M-8; Micro-Chek 11D
EINECS	247-761-7

Quality Control

Our 5-Chloro-2-n-Octyl-4-Isothiazolin-3-One is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment, ensuring traceability and compliance for our global B2B clients.

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 alkalis and incompatible organic solvents. For long-term stability, avoid extreme temperatures and direct sunlight.

Specification

Item	Specification
Appearance	Clear to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.03 - 1.08
pH (1% solution)	3.0 - 6.0

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