Propyl is a term used in organic chemistry to describe a specific type of hydrocarbon group. It consists of three carbon atoms and is represented by the chemical formula C3H7. Propyl can be found in various forms, including n-propyl and isopropyl, which differ in the arrangement of their carbon atoms. The propyl group is commonly used in the production of various chemicals and materials. For example, isopropyl alcohol, also known as rubbing alcohol, is a widely used solvent and disinfectant. Propyl compounds are also found in some fuels and plastics, making them important in both industrial and everyday applications.