P-tert-Butylbenzoic acid is an important organic chemical intermediate. The main uses are: as a key intermediate in the production of polyvinyl chloride stabilizers (PVC stabilizers), and also as a modifier for the production of alkyd resins; Used as cutting oil and lubricant additive; Used as a nucleating agent for polypropylene; Used as a food preservative; Regulating agents for polyester polymerization; Additives for car deodorizers, outer films for oral medications, alloy preservatives, lubricant additives, polypropylene nucleating agents, polyvinyl chloride heat stabilizers, metal processing cutting fluids, antioxidants, alcohol acid resin improvers, fluxes, dyes, and new sunscreen agents; It is also used to produce methyl p-tert-butylbenzoate, which is widely used in chemical synthesis, cosmetics, essence, spices and other industries.