Methyl S35-sulfate, 1, 2-propanediol S35-sulfate and butanediol S35-sulfate were identified from the ethanol extract of the embryo.
Distribution of S35-sulfate ester in the developing egg was compared. Isopropyl S35-sulfate as well as other sulfate esters were found to be mainly distributed in allantois.
Minced liver from chick embryo and newly-born chick had an ability to esterify various alcohols and phenols with S35-sulfate. Ability and the extent of esterification were much higher in embryo than in newly-born chick.
Significance of the formation of isopropyl sulfate in eggs was discussed.
The author is indebted to Prof. N. Tamiya for his invaluable advice and encouragement throughout this work. Thanks are also due to Mr. H. Koreyasu and Mr. K. Terato for their skillful technical assistance.
