They are widely used in water treatment,pools and spas,civil sanitation,preventing and curing diseases in husbandry... Trichloroisocyanuric Acid Multiaction Tablets Molecular formula: C3O3N3CL3HS CODE: 2933.6922.00CAS NO.: 87-90-1IMO: 5.1UN NO.: 2468Packaging group: IIDensity: 0.9~1.8Function : Antisepsis, sterilization, water cleaning, bleaching, killing alga, deodorizationSpecifications: As per the clients' requests.Tablet Size: 200g.