OCCURRENCE AND DETERMINATION OF CONJUGATED SULFATES OF ESTROGENS IN URINE FROM PREGNANT WOMEN

Abstract
Among 7 samples of urine of late pregnancy, from 5% to 89% of the estriol fraction and from 8% to 100% of the estrone-estradiol fraction were found to be conjugated as the sulfate. This was demonstrated by the use of an enzyme prepn. containing phenol-sulfatase, Evidently the sulfate ester linkage is with the phenolic hydroxyl group at position 3 since phenolsulfatase does not hydrolyze alcoholic sulfates.