Pyridine

Propionic acid is a short-chain fatty acid that is produced by the degradation of carbohydrates. It is used as a food additive in many different products such as soy sauce, baked goods, yogurt, and ice cream. It is also used in the production of antibiotics, fungicides, and pesticides. Propionic acid is also used in the production of biodiesel and is found in the vomit of all mammals.