Used primarily as a key intermediate in organic synthesis, especially in the pharmaceutical industry. It plays an important role in the preparation of active pharmaceutical ingredients (APIs) where the cyclopropyl group is part of the target molecule’s structure. Its reactivity as an acylating agent makes it suitable for forming amide and ester derivatives under controlled conditions. Commonly employed in the synthesis of antiviral, antibacterial, and central nervous system agents due to the metabolic stability imparted by the cyclopropyl ring. Also utilized in agrochemical synthesis for building complex molecules requiring strained ring systems. Handling requires caution due to its lachrymatory and moisture-sensitive nature.