Used primarily as an intermediate in the production of pesticides such as DDT (though largely phased out), chloral also serves in the synthesis of other organic compounds including pharmaceuticals and dyes. It reacts to form chloral hydrate, a sedative and hypnotic agent historically used in medicine. Due to its reactivity, it is employed in laboratories for the preparation of various chlorinated compounds. Its use is restricted in many regions due to toxicity and potential for misuse.