2-Methyl-4-isothiazolin-3-one CAS 2682-20-4

Chemical Name: Methylisothiazolinone

Synonymous Names: MIT; MI; 2-Methyl-4-isothiazolin-3-one; 2-Methyl-3(2H)-isothiazolone

CAS No.: 2682-20-4

Active Content: 50%

Molecular Formula: C4H5NOS

Molecular Weight: 115.16 g/mol

EINECS Number: 220-239-6

Type: Industrial Preservative Grade

Foconsci’s Methylisothiazolinone (MIT) is a water-based preservative used to control bacteria, fungi and other microorganisms in industrial formulations.

We supply MIT aqueous solution 50% (MIT-50). This grade suits water-based coatings, polymer emulsions, adhesives, process fluids and other products that need microbial protection during storage and use.

Structural formula:2-Methyl-4-isothiazolin-3-one CAS 2682-20-4

Product Specification

ItemSpecification
Product NameMethylisothiazolinone MIT 50%
CAS Number2682-20-4
MIT Active Content49.5–50.5%
AppearanceColorless to pale yellow transparent liquid
pH3.0–7.0
Density≥1.10 g/mL
CMIT≤100 ppm

Applications of Methylisothiazolinone

Water-Based Paints and Coatings: MIT helps control bacterial and fungal growth in water-based paints, coatings and similar formulations during storage.

Polymer Emulsions and Adhesives: MIT protects synthetic polymer emulsions, latex systems and water-based adhesives from microbial contamination.

Industrial Water and Process Fluids: MIT can be used in industrial water systems and process fluids where microbial growth can cause slime, odor or product deterioration.

Detergents and Household Formulations: MIT can also preserve water-based detergent and cleaning formulations.

Packaging and Storage

Our Methylisothiazolinone is packed in 25 kg or 200 kg plastic drum.

Keep MIT-50 in its original sealed container and protect it from direct sunlight and excessive heat.

Avoid contamination with reducing agents, strong alkalis and other materials that may reduce preservative stability.

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