... ,2-hydroxy-2,4,4aa-trichlorodiphenyl Appearance:White crystalline powder Purity:99% min Melting point:55-60 Chemical name: 2,4,4'trichloro 2'-hydroxy ... 99% minMelting point : 55-60oCLoss on drying : 0.1% maxAsh : 0.1% maxHeavy metal : l0ppm maxThis product is a disinfectant with ... by Switzerland is the same as our product.Characteristics :1.White crystalline powder with slight fragrance or the smell of ...