... -Dibromo-5,5-dimethylhydantoin cas:77-48-5 purity:98% used in water treatment system, swimming pools 1,3-Dibromo-5,5-dimethylhydantoin ... [Product Name]:1,3-Dibromo-5,5-dimethylhylhydantoin [Molecular Formula ... 77-48-5[Use]: It is a new type sterilizing water treatment agent widely used in water treatment system, swimming pools ...