Cyclobut-1-enecarboxylic acid finds applications in organic synthesis, particularly as a building block for more complex molecules. Its strained cyclobutene ring makes it a valuable intermediate in the preparation of various pharmaceuticals and agrochemicals. The compound is often utilized in cycloaddition reactions, enabling the formation of new ring structures with potential biological activity. Additionally, it serves as a precursor in the synthesis of fine chemicals and specialty polymers, where its unique structure imparts specific properties to the final product. Researchers also explore its use in material science for developing novel compounds with tailored functionalities.