title: Problems with iodometric assay of penicillin V benzathine.
mesh_terms: D007455:Iodine; D008722:Methods; D010404:Penicillin V / Q000031:analogs & derivatives* / Q000032:analysis; D013885:Thiosulfates
chemical_list: D013885:Thiosulfates; D007455:Iodine; D010404:Penicillin V