Tamoxifen-d5 is a deuterium labeled Tamoxifen. Tamoxifen is a selective modulator of estrogen receptor (SERM). Tamoxifen is a potent activator of Hsp90 and enhances the Hsp90 molecular chaperone ATPase activity.
N-Desmethyltamoxifen, the principal metabolite of tamoxifen in humans, serves as an efficacious modulator of ceramide metabolism within human AML cells by inhibiting ceramide glycosylation, hydrolysis, and sphingosine phosphorylation. Although it demonstrates weak antiestrogenic properties, it acts as a protein kinase C (PKC) inhibitor with a potency ten times greater than that of tamoxifen.