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What foods contain E280 Propionic Acid CAS 79-09-4?

Jan 20, 2026 Leave a message

Which Foods Contain Propionic Acid CAS 79-09-4?

Propionic acid CAS 79-09-4 (E280) is a common preservative in many foods. It's widely used in bakery items like sliced bread, rye bread, rolls, tortillas, cakes and hamburger buns. Dairy and desserts such as processed cheeses, puddings, yogurt and ice cream also contain it, as do processed meats, poultry, sauces, breakfast cereals and ready-meals. Some processed fruits, dried veggies and vinegar/oil-soaked veggies also have it.

 

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How to Spot It:

Look for "Propionic acid" or "E280" on ingredient lists.

Be aware of "Fermented wheat flour" or similar terms, which can be propionic acid in a less-labeled form.

 

Other Uses of Propionic acid C3h6o2:

 Agricultural Applications: Employed as a herbicide and fungicide, it effectively controls unwanted plant growth and fungal infections, making it valuable for crop protection.

Pharmaceuticals: Utilized in the synthesis of various pharmaceuticals, it serves as a building block for drugs, enhancing their efficacy and stability.

Industrial Manufacturing: Used in the production of plastics, solvents, and other chemicals, it plays a crucial role in creating materials that are essential for various industries.

Biochemical Research: Acts as a key reagent in biochemical assays and studies, facilitating research in metabolic processes and cellular functions.

 

 

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