Molecular Weight: 396.52 g/mol

Melengestrol Acetate Chemical Structure
Chemical Structure
Check the Melengestrol Acetate product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

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 10 mg/mL (25.21 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 10 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).

Chemical Information

IUPAC Name [(8R,9S,10R,13S,14S,17R)-17-acetyl-6,10,13-trimethyl-16-methylidene-3-oxo-1,2,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthren-17-yl] acetate
CAS Number 2919-66-6
Molecular Formula

C25H32O4
Molecular Weight (MW) 396.52
SMILES CC(=O)OC1(C(C)=O)C(=C)CC2C3C=C(C)C4=CC(=O)CCC4(C)C3CCC12C
InChIKey UDKABVSQKJNZBH-DWNQPYOZSA-N

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