we product BCDMH,DCDMH,DBDMH.This is one new kind of sanitizer, widely used in industrial water and waster water treatments, the open-air or indoor swimming pool sterilization and disinfection (only 1-2ppm concentration), toilet deodorization, the flowers and seeds sterilization in agriculture, and fruits preservation, etc. It has a particular capability, by which various bacteria and viruses can be sterilized efficiently to prevent aquatic animals and plants from the diseases.