Estrogenreceptormodulator 6 (compound 3a) is a highly specific and potent agonist of the estrogenreceptor (ER) β with a remarkable affinity (K i = 0.44 nM). This compound exhibits an impressive 19-fold selectivity for ERβ over ERα, as evidenced by its affinity (K i = 8.4 nM).
Tamoxifen-d5 is a deuterium labeled Tamoxifen. Tamoxifen is a selective modulator of estrogenreceptor (SERM). Tamoxifen is a potent activator of Hsp90 and enhances the Hsp90 molecular chaperone ATPase activity.