Application: BCDMH can be used in swimming pools , industrial cooling water system and other fields. Superiority: Now in the Chinese market, the production of bromochloro-disinfectants are prepared either by simply mixing two or more individual bromo- and chloro- preparations physically, or by reducing complex bromochioro- preparations by inorganic process. The products obtained from either of them lead to lowering the disinfection capacity and effect of their active matter. In contrast, our product is synthesized by a special technical process, by attaching bromine and chlorine on an organic substrate directly. It has better activity, higher stability, lower cost and more safe.