... treatment system, swimming pools 1,3-Dibromo-5,5-dimethylhydantoin [Product Name]:1,3-Dibromo-5,5-dimethylhylhydantoin [Molecular Formula]: C5H6O2N2Br2 [Molecular Weight]: ... can dissolve 2.2g1 of 1,3-Dibromo-5,5-dimethylhylhydantoin, pH-value of 0.1% water solution is 2.6. Can easily ... absorb moisture; has slightly irritating smell. [CAS]: 77-48-5[Use ...