Used as an antioxidant and antiozonant in rubber and polymer industries, particularly in tires and rubber goods to prevent degradation from oxygen and ozone exposure. Provides long-term protection against cracking, hardening, and loss of mechanical strength in rubber products exposed to dynamic stress and environmental factors. Also employed in industrial coatings and adhesives to enhance durability and extend service life. Effective in protecting unsaturated polymers such as natural rubber, styrene-butadiene rubber (SBR), and polybutadiene.