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有机氯类化合物六氯环己烷[Hexachlorocyclohexane(HCH)俗称“六·六·六”]于1825年由Faraday首次合成,并发现其杀虫特性。此后,又相继合成新的高效HCH及纯R-HCH异构体,曾作为重要的
The organochlorine compound Hexachlorocyclohexane (HCH) commonly known as “6.66”] was first synthesized by Faraday in 1825 and found its insecticidal properties. Since then, new HCH and pure R-HCH isomers have been synthesized one after another,