Used primarily as a high-energy-density fuel in advanced propulsion systems, especially in missile and aerospace applications. Its strained polycyclic structure provides exceptional volumetric heat of combustion, making it ideal for use in ramjets and other air-breathing engines where high energy output and thermal stability are critical. It is also valued for its low volatility and good thermal resistance, allowing operation under extreme conditions. Additionally, it serves as a precursor in the synthesis of other specialty hydrocarbons used in defense and rocketry technologies.