C15H12O7

C15H12O7, also known as citric acid, is a weak organic acid with the molecular formula C6H8O7. It is a natural preservative and is widely used in the food and beverage industry. Citric acid is produced by the metabolism of carbohydrates in living organisms and is found in various fruits and vegetables, such as lemons, limes, oranges, and tomatoes. It is also a key intermediate in the Krebs cycle, a fundamental process in cellular respiration.

Citric acid has a molecular weight of 192.12 g/mol and is a white, crystalline powder at room temperature. It is soluble in water and has a pKa value of 3.13, indicating its weak acidic nature. The compound is commonly used as an acidifier, flavoring agent, and preservative in food products. It is also used in the pharmaceutical industry as a buffering agent and in the production of various chemicals, including citrates and esters.

Citric acid is generally recognized as safe (GRAS) by the U.S. Food and Drug Administration (FDA) and is approved for use in food and beverages. It is also used in the production of cleaning products, cosmetics, and personal care items. However, excessive consumption of citric acid can lead to gastrointestinal discomfort and other health issues. Therefore, it is important to use citric acid in moderation and follow the recommended dosage guidelines.