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  • OIT 45 preservative CAS 26530-20-1
  • OIT 45 preservative CAS 26530-20-1
  • OIT 45 preservative CAS 26530-20-1
  • OIT 45 preservative CAS 26530-20-1
  • OIT 45 preservative CAS 26530-20-1
OIT 45 preservative CAS 26530-20-1OIT 45 preservative CAS 26530-20-1OIT 45 preservative CAS 26530-20-1OIT 45 preservative CAS 26530-20-1OIT 45 preservative CAS 26530-20-1

OIT 45 preservative CAS 26530-20-1

  • CAS:26530-20-1
  • Purity:45%
  • Appearance:Pale brown liquid
  • Package:25kg,200kg,1mt drum
  • Product description: OIT45 Biocide is a broad-spectrum fungicide. Which has strong bactericidal ability and excellent stability. The effect is obviously better than traditional mold inhibitors. It is a replacement product

OIT 45 Preservative (Octylisothiazolinone 45 broad spectrum fungicida)

Metalworking Fluid Fungicide for Water-Based Cutting Fluids

Product Name: OIT 45 Preservative

Chemical Name: 2-n-octyl-4-isothiazolin-3-one (OIT)

CAS No: 26530-20-1

This biocide is a broad-spectrum fungicide that has been recommended and widely used for tankside control of fungi in metalworking central systems. It's also an effective fungicide for use in many metalworking fluid concentrates with the appropriate stabilizer package. Due to the wide variations in metalworking fluid formulations, laboratory or small-scale tests are recommended to evaluate OIT-45 in use- dilution and concentrate metalworking fluids before they are commercialized. Octylisothiazolinone is a highly effective, industrial fungicide that exhibits excellent fungistatic and fungicidal activity against fungi, including yeasts and mold, and Gram-Positive bacteria, and limited activity against Gram-Negative bacteria. Commonly known as octhilinone, 2-n-octyl-4-isothiazolin-3-one is the active ingredient. It is supplied as a 45 percent active liquid in propylene glycol.

The performance of OIT-45 is similar to KATHON ™ 893 MW /SKANE ™ M-8 ,ACTICIDE ® 45,ACTICIDE ® OTW 45 ,Isocil™ WT,BIOCIDE 18/45 SKYBIO 429.


Soluble, synthetic, and semi-synthetic metalworking fluids or coolants provide an excellent environment for the growth of various microorganisms, including bacteria, mold, and yeast. If allowed to grow, these organisms can have detrimental effects on the fluids. For example, bacteria, which can grow very quickly, can destroy the integrity of the fluid by discoloration, destroying lubricity characteristics, and causing emulsions to split. Bacteria can also reduce the pH of the fluid, which can promote corrosion. Some forms of bacteria have objectionable odors. Fungi typically grow more slowly than bacteria, but can form large masses which clog filters and lines and in some cases lead to system shutdown; fungi also generate foul odors and can cause corrosion. The increased use of synthetic fluids over the past few years has led to an even greater need for the enhanced fungal control that OIT-45 Biocide can provide.

Technical Index:


Pale brown liquid

Content of active substance %


Ph value


Density(25℃) g/cm3



Widely used in Paint、inks、lubricant、shoes cream、leather chemical、wood product and cultural relic protection etc.

Applications/ Directions for Use

Method of Addition

It should be directly dispensed into metalworking fluid concentrates or use-dilution metalworking fluids using a metering pump or other point-of-use device where possible and uniformLy dispersed throughout the fluid.

Fluid Concentrate

OIT 45  Biocide should be added to metalworking fluid concentrates at a level that ensures the final use-dilution fluid will contain 55 to 167 ppm of product (25 to 75 ppm active ingredient).

Use-Dilution Fluid

We highly recommend grossly contaminated systems be cleaned before treatment is begun.

Initial Dose: For a noticeably fouled system, add 0.47 to 1.44 lbs (7 to 21 fl oz) of OIT-45 Biocide per 1,000 gallons of fluid. This will provide 25 to 75 ppm active ingredient. Repeat until control is achieved.

Subsequent Dose: For maintenance of a non-fouled system, add 0.09 to 0.58 lbs (1.3 to 8.6 fl oz) of OIT-45 Biocide per 1,000 gallons of fluid every four weeks. This will provide 5 to 30 ppm active ingredient. A higher dose range and/or increased frequency of treatment may be required, depending upon the rate of dilution of the preservative with the makeup fluid, the nature and severity of contamination, level of control required, filtration.

Safety/Operation/Toxicity: Avoid any contact with the skin. Wear protective clothes, goggles, and rubber gloves in operation. Once touch, will be sensitive to skin.Irritating to the skin and eyes.

Remarks: When the final products content is lower than 1.79%, don’t need special tagging,once above 1.79% ,please consult with factory technique lab.

Packaging: 25Kgs, 200 Kgs drum

Storage:With a shelf time of one year when stored at room temperature in a dark, air-tight, and moisture-proof place.

Our Market

Our primary markets are North and South American, Southeast Asia, Eastern Europe, Middle East and Africa. With more ten years experience in industrial biocide, preservatives and mold inhibitor, Sinotrust had been supplying customers worldwide with high quality products. For clients who need more than one type of chemical product, we also provide mixed containers which will save you time and money.

Quality Testing Center:

We have strict requirements on product quality, In order to control the quality of our products, the production department performs product quality inspection on each batch of cargo produced with advanced equipment for testing and manufacturing. Before our new customer places an order, we can send the sample for your testing. We ensure the quality is the same as bulk quality.

Transport Mode:

Multipletransportation methods can be selected, Sea Transport, Air Transport, Express Transport and Railway Transport. The transport method will be done according to customers' request. Our priciple is to delivery the goods reached to customers with shortest time and ecomomic transport mode, safe and fast.