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Broad-spectrum Fungicide DCOIT 98%

AAB Group has launched a high-purity, high-stability series of DCOIT products. Among them, DCOIT 98%, as a dry-film broad-spectrum antifungal agent, has become a key additive for bio anti-corrosion, marine anti-fouling coatings, dry film preservative, wood coating, plastics, leather, papermaking, wood, textiles, printing and dyeing. It is also suitable for use as an additive in adhesives and inks, thanks to its broad-spectrum and long-lasting antimicrobial properties.

Chemical Name :
4,5-dichloro-2-octyl-4-isothiazolin-3-one
Application :
bio anti-corrosion, marine anti-fouling coatings, dry film preservative, wood coating, plastics, leather, papermaking, wood, textiles, printing and dyeing.
Product model :
DCOIT 98%
Appearance :
White or off-white powder, off-white waxy substance
brand :
Kabasph

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product introduction

4,5-Dichloro-2-octyl-4-isothiazolin-3-one, commonly known as DCOIT, has the CAS number 64359-81-5. DCOIT 98% typically appears as a white or off-white powder or a waxy solid. This physical form makes it highly suitable for incorporation into a wide variety of matrices. DCOIT is able to penetrate microbial cell membranes and cell walls and enter the interior of the cell. The active moiety on the heterocyclic ring interacts with proteins inside the microorganism, causing bond cleavage and leading to rapid cell death. This mechanism is effective against a broad spectrum of microorganisms, including fungi, algae, and bacteria. DCOIT 98% has been widely applied in bio anti-corrosion and marine anti-fouling paints and coatings.

Specification:

Product Name	4,5-dichloro-2-octyl-4-isothiazolin-3-one (DCOIT-98)
CAS No.	64359-81-5
EC-No.	264-843-8
Molecular Formula	C11H17NOSCl2
Molecular Mass	282.2
Appearance	White or off-white powder, off-white waxy substance.
Active Ingredient(%)	Active Ingredient(%) ≥98.0
Melting point	40 ~ 46 °C
Water solubility	Low water solubility

Features:

Broad-Spectrum High Efficacy: It effectively controls a wide variety of microorganisms, providing comprehensive protection.
Low Water Solubility and High Stability: These properties are crucial for its long-term performance. The low solubility of DCOIT minimizes leaching from treated materials, while its chemical stability ensures long-lasting protection even under harsh environmental conditions.
Dry-Film Activity: Unlike some biocides that are only effective in a wet state, DCOIT remains active in dry films—a key feature for coatings, sealants, and polymer materials.
Compatibility: It can be successfully incorporated into a wide range of material systems without compromising their core properties, and exhibits good compatibility with marine paints.

Applications:

Marine Antifouling Coatings: As a key auxiliary biocide, it inhibits the attachment and growth of barnacles, algae, and other organisms on hulls, thereby improving fuel efficiency and reducing maintenance.
Paints, Coatings, and Inks: Used as a dry-film preservative to prevent mold and algal growth on interior and exterior surfaces, maintaining aesthetic appearance and structural integrity.
Polymers and Plastics: Incorporated into materials such as PVC, polyurethane, and polyethylene to provide comprehensive antimicrobial protection, preventing staining, odors, and polymer degradation.
Leather, Textiles, and Adhesives: Protects finished products from fungal and bacterial damage during storage, transportation, and use.
Wood Preservation: Helps safeguard treated wood against decay fungi and surface mold.
Industrial Fluids: Used in systems such as cooling water and paper pulp slurries to control microbial growth that can cause corrosion, blockages, and spoilage.

Packaging and Storage:

25 kg/200 kg/1000 kg plastic drum

Store at room temperature, away from light, and in a tightly sealed container.

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