Widely used as an antioxidant in lubricants and industrial oils to prevent oxidation and extend service life. Effective in transformer oils, where it inhibits sludge formation and maintains dielectric properties over time. Commonly added to rubber and polymer products to enhance thermal stability and prevent degradation from heat and oxygen exposure. Also utilized in some biocidal formulations due to its antimicrobial properties, particularly in fuel systems and metalworking fluids to control microbial growth. Its long alkyl chain provides good oil solubility, making it suitable for non-polar environments.