K2C4H4O5

K2C4H4O5 refers to the chemical compound dipotassium malate. It is the potassium salt of malic acid. Malic acid is a dicarboxylic acid that occurs naturally in fruits, giving them a sour taste. In its dipotassium salt form, it is represented by the chemical formula K2C4H4O5. This compound is typically found as a white or off-white crystalline powder and is soluble in water.

Dipotassium malate can be used as a food additive, often functioning as an acidity regulator or a flavoring agent. Its presence in food products helps to control the pH and contribute to tartness. It is also sometimes used in dietary supplements, where it is believed to provide potassium and malate. The body can utilize malate in the citric acid cycle, a metabolic pathway involved in energy production. While naturally occurring, it can also be synthesized. Its properties make it a versatile ingredient in various industrial and consumer applications.