Used as an intermediate in organic synthesis, particularly in the preparation of pheromones and other biologically active compounds. Its Z-alkene structure and mesyloxy leaving group make it suitable for stereoselective coupling reactions, such as palladium-catalyzed cross-couplings or nucleophilic substitutions, where retention of the double bond geometry is important. Commonly employed in the synthesis of natural products requiring precise stereochemistry, including insect pheromones and flavoring agents.