CAS No. 68392-35-8

Batch: Purity:99.89
4-Hydroxytamoxifen (Afimoxifene) Chemical Structure
Chemical Structure
Check the 4-Hydroxytamoxifen (Afimoxifene) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 4-[1-[4-[2-(dimethylamino)ethoxy]phenyl]-2-phenylbut-1-enyl]phenol
CAS Number 68392-35-8
Molecular Formula

C26H29NO2

Molecular Weight (MW) 387.51
SMILES CCC(=C(C1=CC=C(C=C1)O)C2=CC=C(C=C2)OCCN(C)C)C3=CC=CC=C3
InChIKey TXUZVZSFRXZGTL-UHFFFAOYSA-N

Ordering Information

Biological Activity

4-Hydroxytamoxifen (Afimoxifene) is a selective estrogen receptor (ER) modulator and active metabolite of tamoxifen that binds to ERα and ERβ with high affinity. By competing with endogenous estrogens for receptor binding, it modulates estrogen receptor-mediated transcriptional regulation and downstream signaling pathways. This inhibition suppresses estrogen-dependent cell proliferation and gene expression in ER-positive breast cancer cell models. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 77 mg/mL (198.7 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
Ethanol Insoluble
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).

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Note: Technical data last updated: Sep 1, 2026.