Used as an intermediate in organic synthesis, particularly in the preparation of bioactive molecules and pharmaceuticals. Its seven-membered ring structure with a ketone and carboxylic acid functional group makes it valuable for constructing complex cyclic compounds. Commonly employed in the development of prostaglandin analogs and other medicinally relevant structures where ring size and functional group positioning are critical. Also utilized in the synthesis of fragrances and specialty polymers due to its reactive sites and ring strain characteristics.