Product Details


Isothiazolinones (CMIT/MIT)

CMIT/MIT isothiazolinones are biocidal agents used in a variety of industrial applications. They offer broad-spectrum efficacy and high efficiency, making them ideal for use in cool water systems, petroleum refineries, paper mills, and more. Utilizing CMIT/MIT ensures optimal performance with minimal risk of oxidative damage from long-term use.

Product Description

Structural Formula:

Structural Formula:

CAS No. 26172-55-4, 2682-20-4

Molecular weight: 115.16


The most important feature of Isothiazolinones (CMIT/MIT) is its broad spectrum efficacy against bacteria, fungi and algae. Unlike some biocides, which require higher concentrations or additional chemicals to be fully effective, Isothiazolinones achieve their desired results at lower concentrations with minimal risk of oxidative damage from long-term use. In addition to their effectiveness against microbial growth, Isothiazolinones have good thermal stability properties, making them resistant to temperature changes without losing their potency over time. This makes them ideal for industrial applications where temperatures vary widely throughout the process.


Items Index
Grade I Grade II
Appearance Amber transparent liquid Light yellow or light green transparent liquid
Active content % 14.0-15.0 2.0 min
pH (as it) 2.0-4.0 2.0-5.0
Density (20℃)g/cm3 1.24-1.32 1.03 min
CMI/MI (wt %) 2.5-3.4 2.5-3.4


FAQs about Isothiazolinones (CMIT/MIT)

1 What industries benefit from using Isothiazolinones?

Isothiazolinones provide an effective solution for multiple industries, including cool water systems, paper mills, and petroleum refineries, since they effectively prevent the growth of microbial life at low concentrations with minimal risk of oxidative damage from long-term use.

2 How does CMIT/MIT work?

The combined action of 5-chloro-2-methylisithazolione (CMIT) and 2-methylisothiazolinone (MIT) provides a powerful biocide that efficiently kills bacteria, fungi and algae while maintaining low toxicity levels even after prolonged use.

3 Are there any risks associated with using CMIT/MIT?

Due to its low toxicity levels, even after extended use periods, there are few risks associated with using CMIT/MIT compared to traditional chemical disinfectants. However, users should consult local regulatory authorities before utilizing any biocide product for commercial applications.

4 Are there any alternatives available?

Several alternatives are available depending on the industry in which you operate. However, none offer the same combination of efficiency, cost-effectiveness, and environmental safety that makes CMIT / MIT attractive.

5 How is CMIT/MIT applied?

Typically, CMIT / MIT is applied directly into the system requiring preservation or may be added during production processes such as paper milling or oil refining. The exact method will depend on your specific application; it’s best to consult a qualified professional beforehand who can advise on the best course of action.

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