AMMONIUM CHLORIDE, GRANULAR, USP is an inorganic compound, that presents itself as a white crystalline salt that is highly soluble in water. It occurs from the reaction of hydrochloric acid and ammonia. It has uses in medicine as an expectorant in cough medicine, in metalwork as a flux in preparing metals to be tin coated as well as in laboratories to produce cooling baths at low temperatures. Spectrum Chemical manufactured USP products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities.