Sulfaclozine sodium (CAS No 23307-72-4) is an antimicrobial agent classified under sulfonamides originating for use in veterinary medicine It operates principally by inhibiting the bacterial enzyme dihydropteroate synthase interfering with folic acid synthesis This action disrupts nucleic acid production vital for bacterial growth and replication In vitro its activity is observed in the nanomolar to low micromolar range indicating potent antimicrobial effects Sulfaclozine sodium is commonly utilized in cell culture studies and animal models to examine its therapeutic potential against bacterial infections Additionally it is employed in drug screening assays to identify efficacy against various bacterial strains Experimental concentrations typically depend on the specific research design ensuring adequate evaluation of its pharmacological and toxicological profiles