Slow Elimination of Urethan in Relation to its High Garcinogenicity in Newborn Mice.

Abstract
Summary Urethan was found to be eliminated from newborn SWR mice at about one-tenth of the rate found in adults, when injected at a dose of 0.5 mg/g body weight. The longer time during which urethan remains in the body may explain the greater carcinogenic action in newborn mice as compared with adults.