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KATHON™ CG/ICP for Detergents and Cleaning Products

KATHON™ CG/ICP is an EPA-registered, broad-spectrum microbicide used for the preservation of a wide variety of household and industrial products.
KATHON™ biocides and preservatives are based on isothiazolinone chemistry that provides broad antibacterial protection and inhibits microbial contamination of a wide range of products at a very low level of use. KATHON™ products are manufactured by LANXESS and previously manufactured by Dow and DuPont.

Antimicrobial additives are typically used in water-based formulations to prevent microbial growth of organisms that contaminate organic materials causing spoilage issues and a short lifetime of consumer products.

Many biocidal chemistries are available for use as preservatives depending on the application and formulation needs. The isothiazolone active of KATHON™ preservatives offer excellent compatibility with surfactants and emulsifiers over a wide pH range. The biocide is commonly used to provide microbial protection to liquid laundry detergents, hand dishwashing detergents, fabric softeners, air fresheners, floor waxes, polishes, and many other consumer-related products.

Chemistry of KATHON™ CG/ICP preservatives:


KATHON™ CG/ICP and KATHON™ CG/ICP II biocides contain the same type and level of active ingredients (A.I.). The biocides are based on a mixture of two isothiazolinones identified by the IUPAC system of nomenclature as 5-chloro-2-methyl-4- isothiazolin-3-one or Methylchloroisothiazolinone (CMIT) and 2-methyl-4-isothiazolin-3-one or Methylisothiazolinone (MIT).


Active Ingredients
(CAS# 26172-55-4)
1.15% 1.15%
(CAS# 2682-20-4)
0.35% 0.35%
Total 1.50% 1.50%
Inert Ingredients
Magnesium salts 23.00% 2.80%
Cupric nitrate --- 0.15%
Water 75.50% 95.55%
Total 98.50% 98.50%

What makes KATHON™ CG/ICP the best preservative?


  1. Single preservative protects against bacteria, fungus, mold, and yeast

  2. Low dosage rate, 0.05-0.15% (500 ppm -1,500 ppm as supplied)

    • Cost-effective, low cost per use

    • Less performance impact on formulations

    • Lower inventory cost

  3. Formaldehyde-free
  4. Rapidly biodegradable
  5. ​Environmentally acceptable
  6. ​The active ingredient is listed in the EPA safer choice list
  7. Prevents spoilage and contamination of cleaning formulations color or odor imparted to household/industrial consumer products
  8. Inhibition of microbial organism growth in a wide range of liquid detergents and cleaning applications
Contact us to learn more and secure your next purchase of KATHON™ CG/ICP.


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