Methylisothiazolinone, a white solid chemical molecule, is utilized in personal care goods and industrial applications as a biocide. It is allergenic and is used to suppress microbial development in water-based systems. Kathon, a commercially available combination, is used in food-contact paper goods to prevent slime and as an antibacterial ingredient in latex adhesives.

Methylchloroisothiazolinone (MCI) is a biocide that is effective against both gram-positive and gram-negative bacteria, yeast, and fungus. It is often found in water-based personal care and cosmetics, as well as adhesives, detergents, paints, fuels, and industrial operations. It is frequently used in conjunction with other preservatives such as ethylparaben, benzalkonium chloride, bronopol, and phenoxyethanol.

Sodium benzoate is the sodium salt of benzoic acid, which exists in this form when dissolved in water. This compound is produced by treating benzoic acid with sodium hydroxide. On a commercial level, benzoic acid is produced by the partial oxidation of toluene with oxygen. Sodium benzoate is a common food preservative and is also used in various industrial applications.

Sorbic acid is an organic compound that is used as a preservative in the food and beverage industry. It is a white, crystalline powder with a slightly acrid taste. Sorbic acid is often used to inhibit the growth of molds, yeasts, and some bacteria in food products, thus extending their shelf life.

Butylated hydroxytoluene, commonly known as BHT, is a synthetic antioxidant that is widely used as a food additive. It is also employed in various industries, including cosmetics, pharmaceuticals, and the rubber and petroleum industries. BHT is added to products to prevent or slow down the oxidation of fats and oils, helping to extend their shelf life.