Abstract
The glucuronic acid conjugation of 9 alkylbenzenes was studied in rabbits. These alkylbenzenes can be divided into 4 groups according to the amt. and nature of the conjugated glucuronic acid excreted after their admn. These groups are (a) toluene, (b) ethyl-, [image]-propyl-, and n-butyl-benzene, (c) isopropyl-, sec.-butyl-, and sec.-pentyl-benzene, and (d) tert.-butyl- and tert.-pentyl-benzene. About 18% of an oral dose of 350 mg./kg. body wt. of toluene is eliminated unchanged in the expired air.

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