4-Isopropyltoluene, an essential core intermediate in chemical industry is played out mainly through oxidation reaction. Air oxidation is a common method in industry. The reaction temperature and pressure are controlled by cobalt or manganese salts. 4-Isopropyltoluene is selectively oxidized into p-methylbenzoic acids, with a purity that can reach 98%. This is an important raw material in the production of powder coating curing agents and unsaturated polyesters. This compound is not only the core raw material for producing hindered phenolic antioxidants (such as 2,6-di-tert-butyl-p-cresol), but also can be used to prepare high-end fine chemicals such as UV absorber UV-326 and synthetic fragrance carvacrol, effectively connecting the production of basic chemical raw materials and high value-added end products.

In the preparation of daily chemical essence, it is often compounded with citral, linalool and other ingredients, used in soap, shampoo, shower gel and air freshener, which can give the product a natural and refreshing tone, and the fragrance durability is better than ordinary citrus spices. It is used to make daily chemical essences, such as soaps, shampoos, shower gels, and air fresheners. Citral, linalool, and other ingredients are often added, giving the products a more natural, refreshing scent. In addition, it can be converted into p-isopropylcyclohexanol through catalytic hydrogenation reaction, further synthesizing fragrances with lily of the valley aroma; Through halogenation and hydrolysis, carvol can be prepared, which can be used to prepare mint, vanilla and other flavors, greatly enriching the types and levels of essence.

Due to its low toxicity and moderate volatility (about 1/3 that of toluene), 4-isopropyltoluene can be a good alternative to other solvents. (LD50 rat orally administered dose is about 4000mg/kg). It is especially suitable for environmentally friendly wood finishes and coatings with high solid contents. It can be used to dissolve acrylic resins, alkyds resins and pigments. This can improve the glossiness and leveling of coatings and reduce VOC emission. In the rubber industry it is used for rubber processing as it promotes the uniform dispersion and vulcanizing of additives like carbon black.

In the pharmaceutical industry, 4-Isopropyltoluene is used in a variety of ways. These include “raw materials, intermediates and excipients”. The oxidation product from p methylbenzoic is esterified into methyl p methylbenzoate which is used as a key intermediary for the synthesis nonsteroidal anti-inflammatory drugs methylphenidate, and antibacterial drugs sulfamethoxazole. Isopropylphenol is also used to make the beta-blocker Pranolol. Due to its mild antibacterial properties (over 80% inhibition rate against Staphylococcus Aureus, Escherichia Coli, etc.), 4-Isopropyltoluene can be used in formulations as an auxiliary component. It has good skin permeability. It can improve the spreadability of the formulation and the absorption. Its low toxicity, chemical stability, and suitability as a plasticizer or solvent for pharmaceutical packaging makes it ideal. This is used to produce packaging materials like soft capsules and pastes.

In the agricultural field, 4-Isopropyltoluene is used in two main directions: green prevention and management and preservation of agricultural produce. In pesticide preparation, derivatives of p-isopropylphenol synthesized from it as raw materials, such as 2-tert-butyl-4-isopropylphenol, have broad-spectrum bactericidal activity, with a control effect of 75% -90% on wheat powdery mildew and rice sheath blight, and low toxicity to beneficial insects such as bees, which meets the development needs of green pesticides; In addition, new insecticides can be prepared through chlorination and amination reactions, which have a unique mechanism of action and can effectively delay pest resistance. To preserve agricultural products, 4-isopropyltoluene can be mixed with propylene and ethanol in a specific proportion. Its volatile nature can create a protective layer on the surface, which inhibits the growth of pathogens and mold. In experiments, it was possible to extend the shelf life of perishable fruit such as grapes and strawberries by 3-4 days without affecting their taste or nutritional value. It is widely used for cold chain storage and transportation.