Used as a stabilizer in nitrocellulose-based propellants and explosives to prevent premature decomposition. It scavenges nitrogen oxides that form during aging, extending shelf life and improving safety. Commonly found in double-base gun and rocket propellants. Also applied in the production of dyes and as an antioxidant in rubber and lubricants. In analytical chemistry, it serves as a reagent for detecting nitrates and nitrites, producing a characteristic blue color upon reaction.