5‑Chloro‑2‑methyl‑4‑isothiazolin‑3‑one（CMIT）CAS 26172‑55‑4
5‑Chloro‑2‑methyl‑4‑isothiazolin‑3‑one (CMIT, CAS 26172‑55‑4) belongs to isothiazolinone series biocides, widely used as non‑oxidative broad‑spectrum biocide and preservative. Commercial products are usually compounded with MIT (2‑Methyl‑4‑isothiazolin‑3‑one) in a typical ratio 3:1, well‑known as Kathon / CMIT‑MIT solution. It can rapidly inhibit and kill bacteria, fungi, yeast and algae by destroying microbial protein structure, achieve excellent anti‑microbial effect under low dosage.
Product Features
1. Broad‑spectrum bactericidal performance: effective against bacteria, mould, yeast and algae at low working concentration.
2. Wide pH adaptability, stable performance within pH 2‑9, suitable for acidic & neutral‑alkaline water‑based system.
3. Good compatibility: miscible with most surfactants, scale inhibitors and water‑based raw materials, no bad influence to formula system.
4. Good biodegradability, low residual risk after degradation.
5. Non‑oxidative biocide, stable storage under sealed condition.
6. Low‑dosage usage, cost‑effective for industrial preservation.
| Item | Specifications |
| Appearance | Yellow‑green transparent liquid |
| Purity | 1.5% /3% /14% (CMIT/MIT) / 99% (pure solid) |
| Type | Biocide, Preservative, Industrial Biocidal Agent |
| Sample | Available |
| Molecular Weight | 149.59 |
| Shelf Life | 24 Months |
1. Industrial circulating water treatment: Control biofouling, bacteria and algae for cooling tower, circulating cooling water system, oilfield injection water.
2. Coatings & adhesives: In‑can preservative for water‑based paint, latex, adhesive, ink, prevent spoilage and mold growth during storage.
3. Paper‑making industry: Biocide for pulp and paper processing, inhibit microorganism reproduction in paper‑making water system.
4. Daily chemical & cosmetic: Preservative for wash‑off cosmetic, detergent, cleaning agent, wet wipes (follow local regulation dosage limit).
5. Metal working fluid: Preservative for cutting fluid, lubricant, avoid microbial degradation.
6. Textile & leather: Anti‑mildew and bacteriostatic agent for textile processing liquor and leather auxiliary system.
• Standard Packing: 25 kg/drum
• MOQ: to be confirmed by grade and destination
• Lead Time: to be confirmed by order quantity and production schedule
• Shipping: sea / air / express options available
• Store in a cool, dry, and well-ventilated place.
• Keep container tightly closed and protected from moisture.
• Avoid direct sunlight, heat, and open flame.
• Follow SDS guidance for incompatible materials.
