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1-Bromo-3-Chloro-5,5-Dimethylhydantoin

1-Bromo-3-Chloro-5,5-Dimethylhydantoin is a highly effective halogenating agent widely used in industrial water treatment, disinfection, and as a biocide in various applications. This compound, known by its CAS NO 16079-88-2, offers superior stability and controlled release of active halogen species, making it ideal for sanitizing swimming pools, cooling towers, and food processing equipment. Its broad-spectrum antimicrobial properties ensure efficient elimination of bacteria, algae, and other microorganisms, while its solid form allows for easy handling and precise dosing in diverse environments.


1-Bromo-3-Chloro-5,5-Dimethylhydantoin is characterized by its white crystalline powder appearance and low solubility in water, which contributes to its sustained release mechanism. It is commonly applied in formulations where a combination of bromine and chlorine activity is desired for enhanced efficacy. The compound decomposes gradually to release hypobromous and hypochlorous acids, providing prolonged disinfection with minimal corrosion risk. This makes it a preferred choice in industries requiring reliable and long-lasting microbial control, such as pulp and paper manufacturing, oilfield operations, and recreational water facilities.

Product Specifications

  • Chemical Name: 1-Bromo-3-Chloro-5,5-Dimethylhydantoin
  • Molecular Formula: C5H6BrClN2O2
  • Appearance: White crystalline powder
  • Active Halogen Content: Min. 98%
  • Moisture Content: Max. 1.0%
  • pH (1% solution): 3.5 - 5.5
  • Melting Point: 158-163°C
  • Storage Conditions: Keep in a cool, dry place away from sunlight
Parameter Value Unit
Purity ≥98.0 %
Bromine Content 54.0 - 56.0 %
Chlorine Content 26.0 - 28.0 %
Insoluble Matter ≤0.1 %
Heavy Metals (as Pb) ≤10 ppm

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