CAS Number 101-20-2 Molecular Formula C13H9CL3N2O Appearance / Color White powder Content / Assay 98% Moisture(water) 0.15% Melting Point 250 - 255C Application It is widely used as biocide and preservatives for coatings, paints, resins emulsions, oil-water emulsions, starch solution and oilfield injection water, and as bactericides and algaecides for industrial water treatment, and as mildew-retarding agent for papermaking, the leather, the textile and its products and photo-chemicals.