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Chloroethane --> ethyl chloride

(Science: chemical) a gas that condenses under slight pressure. Because of its low boiling point ethyl chloride sprayed on skin produces an intense cold by evaporation. Cold blocks nerve conduction. Ethyl chloride has been used in surgery but is primarily used to relieve local pain in sports medicine.

Pharmacological action: anaesthetics, local.

chemical name: ethane, chloro-