chloral hydrate ( ch ) , an intermediate metabolite of trichloroethylene , is reduced to trichloroethanol ( tce ) by alcohol dehydrogenase and aldehyde reductase , and is also oxidized to trichloroacetic acid ( tca ) by the nicotinamide adenine dinucleotide ( nad ) -dependent enzyme , ch dehydrogenase .
C0001942
alcohol dehydrogenase
C0030016
dehydrogenase