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Home >> Hydantoin >> 1 3-Dibromo-5 5-Dimethyl Hydantoin

1,3-Dibromo-5,5-Dimethyl Hydantoin (DBDMH)

CAS No.: 77-48-5

Molecular Formula: C5H6O2N2Br2           Molecular Weight: 285.94

Structural Formula:

DBDMH Structural Formula


DBDMH is light yellow crystal powder, which can be further processed as glanular and tablet. It is stable when dry, slightly dissoluble in water and also dissolve in chloroform, ethanol and other organic solvent. DBDMH is easy to decompose in strong acid and strong alkali, The best antisepsis pH value of DBDMH is 5-7 and the draff can be biodegradation in a short time without any pollution.


Item Index
Appearance Light yellow crystal powder
Assay ≥98%
Bromo  content  ≥54.8%
Melting point ℃  185-192°C
Drying loss  ≤0.5%

Instant or slow-releasing granular: 8-30mesh


DBDMH is streamlined oxidant type disinfecting agent, with high stabilization, light odor, slow release, long efficient, can be widely used:
1.sterilization for swimming pool and tap water
2.sterilization for aquaculture
3.sterilization for industrial water
4.sterilization of environment for hotel, hospital and other public places.

DBDMH is also a kind of excellent industrial bromating agent, used in making organic chemicals

Package and Storage:

Packed in two layers: non poisonous plastic sealed bag for inside, and paper plastic multiple bag or cardboard barrel for outside. 25Kg net each or by customer's requirement.

Keep in cool and dry; avoid putting together with in jurant for fear of pollution. Validity: one year.


DBDMH, 1,3-Dibromo-5,5-Dimethyl Hydantoin, Hydantoin