2-Methyl-4-isothiazolin-3-one
2-Methyl-4-isothiazolin-3-one (CAS: 2682-20-4, C4H5NOS) is a chemical compound with a molecular weight of 115.15 g/mol. It functions as a broad-spectrum biocide and preservative, highly effective against bacteria, fungi, and algae. Primarily utilised in industrial water treatment, paints, coatings, adhesives, and personal care products, it prevents microbial degradation and extends product shelf life. Its potent antimicrobial properties make it a key component in maintaining product integrity in various aqueous systems.
- IUPAC
- 2-Methyl-3(2H)-isothiazolone
- Synonyms
- 2-Methyl-3(2H)-isothiazolone
Industrial Water Treatment
Acts as a biocide in cooling towers, process water, and wastewater treatment to control microbial growth and prevent biofouling. It helps maintain system efficiency and prevent equipment damage caused by microorganisms.
Paints, Coatings, and Adhesives
Serves as an in-can preservative to prevent spoilage and degradation of water-based formulations during storage. It inhibits bacterial and fungal growth, ensuring product stability and performance.
Personal Care and Cosmetics
Used as a preservative in rinse-off products like shampoos and conditioners to prevent microbial contamination. It helps maintain product safety and efficacy throughout its intended shelf life.
Household and Industrial Cleaners
Incorporated into cleaning product formulations to prevent microbial spoilage and maintain product quality. It ensures the longevity and effectiveness of detergents and other cleaning agents.
| Molecular weight | 115.15 |
|---|---|
| Empirical formula | C4H5NOS |
| Assay | ≥94.0% (GC)95% |
| Grade | analytical standard |
| Impurities tested | ≤5% water |
Hazard statements
- H302Harmful if swallowed
- H314Causes severe skin burns and eye damage
- H317May cause an allergic skin reaction
- H331Toxic if inhaled
- H335May cause respiratory irritation
- H400Very toxic to aquatic life
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3261 8/PG 2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 22-23-34-37-43-50 |
| Safety statements (S) | 26-36/37/39-45-60-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2-Methyl-4-isothiazolin-3-one used for?
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2-Methyl-4-isothiazolin-3-one is primarily used as a broad-spectrum biocide and preservative in various industrial applications, including water treatment, paints, coatings, adhesives, and personal care products, to prevent microbial degradation.
What is the CAS number and chemical formula for 2-Methyl-4-isothiazolin-3-one?
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The CAS number is 2682-20-4 and the empirical formula is C4H5NOS.
What grade and purity does Tech Serve Solutions supply for 2-Methyl-4-isothiazolin-3-one?
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Tech Serve Solutions supplies 2-Methyl-4-isothiazolin-3-one with an assay of ≥94.0% (GC) and a grade of analytical standard. It contains ≤5% water.
How should 2-Methyl-4-isothiazolin-3-one be handled safely?
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Due to its hazardous nature, handle with appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection (type N100 or P3). It is corrosive and toxic, requiring careful handling to avoid skin/eye contact, inhalation, and ingestion. Consult the Safety Data Sheet for detailed guidance.
How is 2-Methyl-4-isothiazolin-3-one packed and exported?
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2-Methyl-4-isothiazolin-3-one is shipped and exported according to stringent international regulations for hazardous materials, typically as UN 3261, Class 8, Packing Group II, ensuring safe transport.
How can I request a quote or sample for 2-Methyl-4-isothiazolin-3-one?
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To request a quote or sample of 2-Methyl-4-isothiazolin-3-one, please contact our sales department via the website or by phone, providing your specific requirements.
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