2-Methyl-4-Isothiazoline-3-Ketone (CMIT/MIT )

Basic Info:

  • Chemical Synonym(s): 2-methyl-2H-isothiazol-3-one; 2-Methyl-4-Isothiazolin-3-one; METHYLISOTHIAZOLIN; 2-Methyl-3(2H)-isothiazolone;
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  • CAS Number: 2682-20-4
  • Chemical Formula:


  • MSDS: Download


Appearance & Physical State
White to yellow powder
Boiling Point
182.8ºC at 760 mmHg
Melting Point
Flash Point
Storage temp
Vapor pressure
<0.1 mm Hg ( 25 °C)
1.25 (14% aq.)
Molecular Weight
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Our company established a special pesticide chemicals division in October 2011 to engage in the export business of pesticide chemicals, and it has been 10 years since then.
We have made remarkable achievements in pesticides, fungicides and herbicides, and have achieved long-term cooperation with customers in Australia, New Zealand, Africa, Asia and South America.
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We have a long-term stable cooperation with GLP laboratories, encounter customer test results and supplier test results do not match the situation, we will commission a third party to test to ensure the accuracy, authenticity and reliability of the experimental results. In this way, we can effectively control the product quality problems.

We have a long-term cooperative warehouse and can follow up packaging and labeling according to safety regulations and customer requirements. In order to effectively prevent damage to the goods in transit, we have prepared various reinforcement measures and packaging solutions.

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CMIT/MIT (2-Methyl-4-Isothiazoline-3-Ketone ) is used as a preservative in cosmetics, as a biocide in household products, as a germicidal agent in medicines, as a fungicide in agriculture and as a microbicide in some types of paints and polymers.

This product is also used in perfumes, soaps, body lotions, cosmetic creams, and some room fresheners. It is applied in the paper coating process to improve some properties of paper.

It is a synthetic preservative with antimicrobial properties in cosmetics and household products such as soaps, shampoos, bath gels, shaving cream and body lotions.

This substance is often found in cleaning products, air fresheners, personal care products, paints, adhesives, and similar products.

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