SDIC(Sodium Dichloroisocyanurate) SDIC is a oxidizing bactericide as a disinfector and it has different forms in powder,granular and tablets. Appearance:White Powder, tablets, granular Molecular formula: C3HCl2N3O3.Na Structural formula: Molecular weight: 219.95 CAS No.: 2893-78-9 HS No.: 2933.6929.10 UN No.: 2465 DG Class:5.1 Function : fighting against infectious diseases as routine disinfection, preventive disinfection and environmental sterilization in different places.