... 70%min High Content, Low Impurity 1,3-Dichloro-5,5-Dimethylhydantoin ( DCDMH )[ Product Name ] : 1,3-Dichloro-5,5-Dimethylhydantoin ( DCDMH ... Transportation ] : Conduct loading and unloading carefully, avoid exposing the product to sunlight and rain,and transporting it with toxic and ... harmful substances. This product is not dangerous and can be transported as common ...