Used primarily as a specialty intermediate in organic synthesis, particularly in the preparation of complex aromatic and conjugated systems. Its structure, featuring both alkyne and alkene functionalities adjacent to a phenyl group, makes it valuable in cross-coupling reactions and cycloadditions. It serves as a building block in the development of pharmaceuticals, agrochemicals, and advanced materials such as organic semiconductors. The molecule’s reactivity allows for selective transformations under transition metal catalysis, enabling the construction of extended π-conjugated frameworks for use in optoelectronic devices.