Mainly used as a solvent for cellulose ether, nitrocellulose, natural and synthetic resins, and also for the synthesis of phenobarbital, pyrethrin, etc. Diethyl carbonate is an important organic synthesis intermediate. Mainly used as a solvent for nitrocellulose Chemicalbook, cellulose ether, synthetic resin and natural resin, as an intermediate for pesticide pyrethrin and drug phenobarbital. In the instrumentation industry, it is used to prepare fixing paint, and it is used to seal and fix the cathode of electron tubes.