Sodium benzoate is best known as a preservative used in processed foods and beverages to extend shelf life, though it has several other uses. It's an odorless, crystalline powder made by combining benzoic acid and sodium hydroxide.
sodium benzoate is an organic sodium salt resulting from the replacement of the proton from the carboxy group of benzoic acid by a sodium ion it has a role as an antimicrobial food preservative a drug allergen an EC (arachidonate 15_lipoxygenase)inhibitor on EC (triacylglycerol lipase)