[Change in the tissue spectrum of carboxylic ester esterases in the postnatal period in rats].

A comparative investigation of the composition of electrophoretic fractions of esterases of compound ethers of carbonic acids has been carried out in the rat tissues. Carboxyl, aryl, acetyl and choline esterases were identified by the sensitivity to inhibitors. Changes in the composition of these esterases during the postnatal period were followed.