4-Hydroxytamoxifen ((E/Z)-4-Hydroxytamoxifen)，又称4-羟基三苯氧胺，是tamoxifen的活性代谢产物，是(Z)-4-Hydroxytamoxifen和(E)-4-Hydroxytamoxifen的消旋体，是雌激素受体的选择性调节剂，可用于乳腺癌治疗研究。

参考文献

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[2] Beland FA, McDaniel LP, Marques MM. Comparison of the DNA adducts formed by tamoxifen and 4-hydroxytamoxifen in vivo. Carcinogenesis. 1999 Mar;20(3):471-7. doi: 10.1093/carcin/20.3.471(IF:4.004).

[3] Davis KM, Pattanayak V, Thompson DB, et al. Small molecule-triggered Cas9 protein with improved genome-editing specificity. Nat Chem Biol. 2015 May;11(5):316-8. doi: 10.1038/nchembio(IF:12.154).

-25~-15℃保存，有效期3年。