Used primarily as an intermediate in organic synthesis, especially in the preparation of complex molecules and specialty chemicals. It serves as a building block in the development of pharmaceuticals, agrochemicals, and advanced materials. Its alkyne functionality allows for participation in coupling reactions, such as Sonogashira and Diels-Alder reactions, making it valuable in research and industrial applications focused on creating carbon-carbon bonds. Also utilized in the synthesis of liquid crystals and fine fragrances due to its linear structure and reactivity.