1,2-Benzisothiazol-3(2H)-one CAS 2634-33-5

Benzo[d]isothiazol-3-one (1,2-Benzisothiazol-3(2H)-one) is an organonitrogen heterocyclic biocide with broad antimicrobial activity, widely used in industrial and consumer products such as paints, detergents, adhesives, and disinfectants.
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1,2-Benzisothiazol-3(2H)-one CAS 2634-33-5

What is 1,2-Benzisothiazol-3(2H)-one CAS 2634-33-5?

1,2-Benzisothiazol-3(2H)-one CAS 2634-33-5 is a commonly used biocide in industrial and consumer products, which possesses antimicrobial activity against gram positive and gram negative bacteria. It is mainly used in packaging, adhesives, detergents, disinfectants, sunscreen lotions, paints and lubricants.

Specifications

Property Value
Melting Point 154-158 °C(lit.)
Boiling point 360°C (rough estimate)
Density 1.2170 (rough estimate)
Color White to Light yellow to Light orange
Form Powder
pka 10.19±0.20(Predicted)
Solubility Soluble in dichloromethane, dimethyl sulfoxide, methanol.
LogP 0.7 at 20℃
Storage Temp. Keep in dark place,Sealed in dry,Room Temperature

Features

  • Broad-spectrum antimicrobial and antifungal agent effective against Gram-positive and Gram-negative bacteria.
  • Excellent thermal and chemical stability, maintaining activity under harsh conditions.
  • Compatible with a wide range of formulations including water-based systems.
  • Low effective concentration needed for microbial control.
  • Helps prevent microbial spoilage, odor formation, and degradation of materials.

Applications

  • Industrial products: Used as a preservative and biocide in paints, coatings, adhesives, sealants, and inks to prevent microbial growth.
  • Household and personal care: Added to detergents, cleaners, and cosmetics for product preservation.
  • Water treatment: Applied to control bacterial contamination in cooling water systems and industrial fluids.
  • Paper, leather, and textile industries: Protects materials from microbial deterioration during processing and storage.
  • Lubricants and metalworking fluids: Prevents microbial-induced corrosion and maintains fluid quality.

Packaging

Mikem offers flexible packaging options, including 25 kg of fiber drums for liquid products and 15–25 kg PP/PE bags for powder products, all customizable to meet your specific needs.

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