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trichloroacetic aldehyde, CCl3CHO; a colorless liquid, with a pungent odor and a boiling point of 97.75°C. Chloral interacts energetically with water, alcohol, and ammonia to form well-crystallized products (see). Chloral is obtained by the chlorination of ethyl alcohol. It is used in the production of insecticides, such as khlorofos and 4,4’-dichlordiphenyltrichloroethane (DDT), as well as in the production of herbicides, trichloroacetic acid, and chloroform.