Methylisothiazolinone

Methylisothiazolinone (CAS 2682-20-4), commonly abbreviated as MIT, is a broad-spectrum biocide used to control microbial growth in aqueous industrial and consumer formulations. It targets bacteria, fungi, and algae at low concentrations.

This makes it a cost-effective preservation solution across multiple sectors. In coatings, paints, and adhesives, MIT is used as an in-can preservative to prevent spoilage during storage and extend shelf life.

Water treatment facilities apply it to control biofouling in cooling towers, industrial water systems, and paper mill process water. In personal care, MIT appears in rinse-off products such as shampoos and liquid soaps.

In these applications, it prevents microbial contamination throughout the product's use cycle. Textile and leather processing operations use it to protect wet-processed materials and finished goods from degradation.

This protection is vital against bacterial and fungal degradation during production and transit. MIT is supplied as an aqueous solution, typically at concentrations of 9.5% or 14% for various uses.

Higher-concentration formulations are available for industrial use. It is commonly offered in technical grade for industrial applications and in cosmetic-grade specifications meeting relevant regulatory standards.

Packaging ranges from drums to IBC containers depending on volume requirements. This versatile biocide remains a staple for manufacturers requiring reliable microbial control in diverse liquid environments.