Used primarily as an intermediate in organic synthesis, particularly in the production of pharmaceuticals and agrochemicals. Its α,β-unsaturated carboxylic acid structure with a cyclopentyl group makes it valuable in constructing complex molecules through conjugate addition or esterification reactions. Commonly employed in the development of active ingredients requiring specific stereochemistry, especially where the (E)-configuration influences biological activity. Also utilized in the synthesis of specialty polymers and fine chemicals due to its reactivity and structural features.