Used as an antioxidant in fuels and oils to prevent oxidation and extend shelf life. Commonly added to lubricants, hydraulic fluids, and transformer oils to inhibit degradation caused by heat and oxygen. Also serves as an intermediate in the synthesis of more complex antioxidants and stabilizers for polymers and plastics. Its steric hindrance provides effective radical scavenging, making it valuable in preserving organic materials exposed to high temperatures or prolonged storage.