Estrone sulfate-d5 sodium is the deuterium labeled Estrone sulfate sodium. Estrone sulfate, a biologically inactive form of estrogen, is a major circulating plasma estrogen that is converted into the biologically active estrogen, estrone (E1) by steroid sulfatase (STS). strone sulfate can be used for the research of breastcancer^[1][2].

Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs^[1].

377.44

C₁₈H₁₆D₅NaO₅S

2734919-86-7

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