CAS No. 850-52-2

Batch: Purity:99.93
Altrenogest Chemical Structure
Chemical Structure
Check the Altrenogest product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 850-52-2
Molecular Formula

C21H26O2

Molecular Weight (MW) 310.43
SMILES CC12C=CC3=C4CCC(=O)C=C4CCC3C1CCC2(CC=C)O

Ordering Information

Biological Activity

Altrenogest is a synthetic progestogen structurally related to trenbolone that acts as a progesterone receptor agonist. By engaging progesterone receptors, altrenogest modulates gonadotropin signaling pathways, suppressing luteinizing hormone release and preventing follicular maturation. Consequently, this compound effectively inhibits estrus and blocks ovulation, serving as a key regulator of reproductive cyclicity and pregnancy maintenance in animal 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 62 mg/mL (199.72 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 62 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.