o-Cresol is widely used as an intermediate in the production of antioxidants, particularly in the synthesis of butylated hydroxytoluene (BHT), which is added to food, plastics, and fuels to prevent oxidative degradation. It serves as a precursor in the manufacture of pesticides, disinfectants, and herbicides due to its ability to disrupt microbial cell membranes and inhibit growth. In the chemical industry, it is employed in the formulation of azo dyes and as a stabilizer in polymer systems. o-Cresol also finds use in the pharmaceutical sector for synthesizing certain drugs, including analgesics and antiseptics. Additionally, it acts as a solvent and modifier in resin production, enhancing the performance of epoxy and phenolic resins. Its antimicrobial properties make it suitable for inclusion in industrial cleaning agents and preservatives.