1. A colorless, flammable hydrocarbon gas with the chemical formula C₄H₈, used in the production of plastics, synthetic rubber, and other chemicals.
Usage: chemistry; also called butylene; exists in three isomeric forms: 1-butene, cis-2-butene, and trans-2-butene

Examples

• Butene is a key feedstock in the petrochemical industry.
• The refinery produces butene as a byproduct of crude oil processing.
• Butene can be polymerized to create polybutene plastics.
• Industrial chemists use butene to synthesize various organic compounds.
• The price of butene fluctuates with global oil markets.