CAS 79-09-4 Propanoic acid, also known as propionic acid, is an important organic acid widely used in food, feed, and chemical industries. Its derivatives are compounds formed by replacing the hydrogen atom of the carboxyl group or modifying the acid structure.
What Are the Derivatives of Propanoic Acid?
Common Derivatives of Propanoic Acid
1. Propionate Salts
Propionate salts are the most widely traded derivatives of propionic acid, especially in food and feed markets.
Calcium propionate
Sodium propionate
Potassium propionate
Main applications:
- Food preservatives for bakery and dairy products
- Mold inhibitors in animal feed
- Shelf-life extension
Propionic Acid Esters (Propionates)
Esters of propanoic acid are formed by reacting propionic acid with alcohols.
Common examples include:
- Methyl propionate
- Ethyl propionate
- Butyl propionate
Applications of Propanoic Acid Derivatives in Different Industries
Food industry
Propanoic acid salts are used as food preservatives, inhibiting mould and bacteria in bread, cakes and other baked goods. Its ester derivatives add fruity flavour to food and beverages.
Pharmaceutical industry
Propionamide and other propanoic acid derivatives are used to synthesise pharmaceuticals. Propionyl chloride is used in acylation reactions during drug production, and sodium propionate is used in antifungal medications.
Flavour and fragrance industry
Propanoic acid esters add a fruity scent to perfumes, colognes and food.
Chemical industry
Propionyl chloride is used to introduce the propionyl group into molecules. Esters are used as solvents in paints, coatings and adhesives.
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