Methylisothiazolinone/ MI



  • INCI Name:           Methylisothiazolinone
  • Chemical Name:  2-Methyl-4-Isothiazolin-3-one
  • CAS No:                2682-20-4

Methylisothiazolinone, MIT, or MI, is a powerful synthetic biocide and preservative within the group of isothiazolinones. This series product by Quzhou Ebright Chemicals Co.,Ltd are with different concentration of 10%, 20% or 50%.

It can inhibit the growth and reproduction of various microorganisms (such as bacteria, fungi, yeast, etc.), and is a broad-spectrum bactericide that is widely used. Compared with other types of fungicides, isothiazolinone fungicides have the advantages of obvious effect and fast action speed for controlling the growth and metabolism of microorganisms and preventing the formation of biofilms.

Methylisothiazolinone (MIT) is suitable for water-based systems such as daily chemicals, cosmetics, coatings, and polymer synthetic emulsions.

Uses & Applications

Personal care

Used for a wide range of personal products , such as cosmetics, lotions, moisturizers, sanitary wipes, shampoos, and sunscreens, etc.

Coat & Painting

The active ingredient for in-can preservation, used in various water-based formulation.

Industrial Field

Wide application ranges from preservative and sanitizing uses to antimicrobial agents in energy production, metalworking fluids, mining, and paper manufacturing, etc.

Product Details




1000KG/IBC Drum




Light yellow transparent liquid

Content of active matter (%)

10.0/20.0/ 50.0

PH value (origin liquid)


Density (g/ml)


Heavy metal (ppm) ≤


Shelf Life

24 months

Download Data Sheet of MI

Technical Data Sheet –Methylisothiazolinone (MI)

Material Safety Data Sheet– Methylisothiazolinone (MI)

Related Products

The active ingredient of CMIT/MIT is Methylchloroisothiazolinone and Methylisothiazolinone with a mixture of 3:1, the total concentration is 14%, also known as Kathon.

Benzisothiazolinone (BIT-20) is a 20%  dipropylene glycol solution of 1,2-Benzisothiazolin-3-one. It is a broad spectrum, formaldehyde-free, in-can biocide.

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