Ethylene is a colorless and flammable gas with the chemical formula C2H4, representing one of the simplest hydrocarbon compounds with a double bond between carbon atoms. It is a natural plant hormone responsible for regulating various growth and developmental processes in plants, including ripening and flowering. Ethylene has significant industrial importance, as it is widely used in the production of plastics, particularly polyethylene, which is one of the most commonly used plastics worldwide. It also finds application in the chemical industry for the synthesis of various organic compounds. Ethylene's dual role in plant biology and industrial chemistry highlights its importance in both the natural world and human technology.