USP-NF Online This link opens in a new windowOfficial national standards for drug substances & dosage forms (USP) & pharmaceutical ingredients (NF). Monographs provide information on molecular & structural formulas, molecular weight, chemical name, Chemical Abstracts Service (CAS) Registry Number, description, packaging & storage, identification tests, & chemical & physical properties. Combined index to both USP/NF. This database is provided to the URI community by the College of Pharmacy.