Methylisothiazolinone CAS 2682-20-4

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Basic Info

Product Name:Methylisothiazolinone
Other Names:1-(4-CHLOROPHENYL)-3-(3,4-DICHLOROPHENYL)UREA;2-METHYL-4-ISOTHIAZOLIN-3-ONE;2-METHYL-4-ISOTHIAZOLINE-3-ONE;2-METHYL-3(2H)-ISOTHIAZOLONE;N-METHYL-3-OXODIHYDRO ISOTHIAZOLE;2-methyl-3(2h)-isothiazolon;Isothiazolone,2-methyl-;Methylisothiazolinone
Place of Origin:Shandong, China
Brand Name:Zhishang Chemical
Type:Heterocyclic Compounds;Industrial/Fine Chemicals;Bactericide and Algicide;Building Blocks;Chemical Synthesis;biocide;Heterocyclic Building Blocks;Thiazolines/Thiazolidines;J’s
Appearance:Colorless liquid
EINECS No.:220-239-6
Storage:Cool Dry Place
Provide:Methylisothiazolinone msds;Methylisothiazolinone COA

Chemical Properties:

Methylisothiazolinone Chemical Properties
Melting point: 254-256 °C(lit.)
Boiling point: bp0.03 93°
density: 1.25 (14% aq.)
vapor pressure :<0.1 mm Hg ( 25 °C)
storage  temp : 2-8°C
pka : -2.03±0.20(Predicted)
form : neat
BRN : 606203
CAS DataBase Reference 2682-20-4(CAS DataBase Reference)
NIST Chemistry Reference 3(2H)-isothiazolone, 2-methyl-(2682-20-4)
EPA Substance Registry System 2-Methyl-3(2H)-isothiazolone (2682-20-4).


  1. Methylisothiazolinone, or MIT as it is sometimes known, is a preservative used in cosmetics and beauty products. It is a powerful biocide, or “chemical substance capable of killing living organisms, usually in a selective way.”Biocides are a general term that includes antimicrobial, germicide, antibiotic, and antifungal. Ultimately, Methylisothiazolinone is used to prevent a wide variety of bacteria and fungi from growing in cosmetics and beauty products, most often in shampoo. It is only approved for use in rinse-off formulas and at low concentrations.
  2. Methylisothiazolinone is a isothiazolinone based biocide and preservative used in personal care products. 2-Methyl-4-isothiazolin-3-one is also used for controlling microbial growth in water-c ontaining solution.
  3. Methylisothiazolinone is used to control slime-forming bacteria, fungi, and algae in pulp/paper mills, cooling water systems, oil field operations, industrial process waters, and air washer systems. And Methylisothiazolinone is incorporated into adhesives, coatings, fuels, metal working fluids, resin emulsions, paints, and various other specialty industrial products as a preservative. It is also used to control the growth of mold, mildew, and sapstain on wood products.
  4. Methylisothiazolinone is generally recommended for use only in rinse-off and leave-on cosmetic products (maximum concentration of 100 ppm) as preservative such as shampoo, conditioner, hair color, body wash, lotion, sunscreen, mascara, shaving cream, baby lotion, baby shampoo, hairspray, makeup remover, liquid soaps, and detergents. Nevertheless, methylisothiazolinone is allergenic. It is reported that methylisothiazolinone in rinse-off products causes allergic contact dermatitis.

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food Additives
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.