

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.
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.
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).
KATHON™ CG/ICP | KATHON™ CG/ICP II | |
Active Ingredients | ||
5-chloro-2-methyl-4-isothiazolin-3-one (CAS# 26172-55-4) | 1.15% | 1.15% |
2-methyl-4-isothiazolin-3-one (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% |

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Single preservative protects against bacteria, fungus, mold, and yeast
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Low dosage rate, 0.05-0.15% (500 ppm -1,500 ppm as supplied)
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Cost-effective, low cost per use
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Less performance impact on formulations
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Lower inventory cost
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- Formaldehyde-free
- Rapidly biodegradable
- Environmentally acceptable
- The active ingredient is listed in the EPA safer choice list
- Prevents spoilage and contamination of cleaning formulations color or odor imparted to household/industrial consumer products
- Inhibition of microbial organism growth in a wide range of liquid detergents and cleaning applications
What makes Kathon™ CG/ICP the best preservative?


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