2-butyne is a type of hydrocarbon known as an alkyne, which means it contains a triple bond between two carbon atoms. Its chemical formula is C₄H₆, indicating it has four carbon atoms and six hydrogen atoms. This compound is a colorless gas at room temperature and is often used in organic synthesis and as a building block for more complex chemicals. In terms of structure, 2-butyne has a linear arrangement of its carbon atoms, with the triple bond located between the second and third carbon atoms. This unique arrangement gives it distinct chemical properties compared to other hydrocarbons, such as butane or butene. 2-butyne can be found in various industrial applications, including the production of plastics and other materials.