Description

1,3-Dichloro-5,5-Dimethylhydantoin (DCDMH) is a versatile and highly effective chlorinating and oxidizing agent widely used in industrial processes. Its primary value lies in its ability to provide a controlled, stable source of chlorine, making it a safer and more convenient alternative to gaseous chlorine or sodium hypochlorite for many applications. This compound is essential for manufacturers and processors in the water treatment, pulp & paper, and specialty chemical synthesis industries seeking reliable and efficient halogenation.

Application

• Industrial & Recreational Water Treatment: Used as a stable, slow-release biocide and algicide in cooling towers, swimming pools, and process water systems.
• Pulp & Paper Bleaching: Serves as a bleaching agent and slimicide in the pulp bleaching process to improve brightness and control microbial growth.
• Chemical Synthesis: Acts as a key chlorinating and oxidizing agent in the production of pharmaceuticals, agrochemicals, and other specialty organic compounds.
• Textile Processing: Employed for bleaching textiles and as an antimicrobial treatment for fabrics.
• Sanitization & Disinfection: Formulated into industrial cleaners, disinfectants, and sanitizers for hard surfaces.
• Marine Antifouling: Used in coatings and treatments to prevent the growth of barnacles, algae, and other organisms on ship hulls.

Basic Information

Product Name	1,3-Dichloro-5,5-Dimethylhydantoin
CAS No.	118-52-5
Molecular Formula	C5H6Cl2N2O2
Molecular Weight	197.02 g/mol
Synonyms	DCDMH; 1,3-Dichloro-5,5-dimethyl-2,4-imidazolidinedione; Halane; Dactin; 5,5-Dimethyl-1,3-dichlorohydantoin; 1,3-Dichloro-5,5-dimethylimidazolidine-2,4-dione; N,N'-Dichloro-5,5-dimethylhydantoin
EINECS	204-258-7

Quality Control

Our 1,3-Dichloro-5,5-Dimethylhydantoin is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, active chlorine content, and physical properties. A comprehensive Certificate of Analysis (COA) documenting these results is provided with each shipment to guarantee consistency and compliance with your process requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials such as strong acids, bases, and reducing agents. Due to its oxidizing nature, keep separate from combustible materials. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (Active Chlorine)	Min. 65.0%
Assay (DCDMH by HPLC)	Min. 98.0%
Melting Point	130 - 135 °C
Water Content (KF)	Max. 0.5%
Residue on Ignition	Max. 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.