CAS No. 50-41-9

Batch: Purity:99.95
Clomifene citrate  Chemical Structure
Chemical Structure
Check the Clomifene citrate product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 2-[4-(2-chloro-1,2-diphenylethenyl)phenoxy]-N,N-diethylethanamine;2-hydroxypropane-1,2,3-tricarboxylic acid
CAS Number 50-41-9
Molecular Formula

C26H28ClNO.C6H8O7

Molecular Weight (MW) 598.08
SMILES CCN(CC)CCOC1=CC=C(C=C1)C(=C(C2=CC=CC=C2)Cl)C3=CC=CC=C3.C(C(=O)O)C(CC(=O)O)(C(=O)O)O
InChIKey PYTMYKVIJXPNBD-UHFFFAOYSA-N

Ordering Information

Biological Activity

Clomifene citrate is a selective estrogen receptor modulator that acts as an antagonist of the estrogen receptor in the central nervous system. By blocking estrogen receptors in the hypothalamus and pituitary gland, it inhibits estrogen-mediated negative feedback. This blockade stimulates the release of gonadotropin-releasing hormone, which enhances secretion of follicle-stimulating hormone and luteinizing hormone to promote ovarian follicular development and induce ovulation.[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 120 mg/mL (200.64 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 11 mg/mL
Water 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.