👉 Isobutylene, also known as butane, is a hydrocarbon with the chemical formula C3H8. It has two double bonds between its carbon atoms, making it highly polar and flammable. Isobutylene is commonly found in natural gas (natural gas) and in synthetic products such as plastics, petrochemicals, and lubricants. It can also be produced from renewable energy sources like solar or wind power when combined with other hydrocarbons to form butane.