Molecular Weight: 209.25 g/mol

Minoxidil Chemical Structure
Chemical Structure
Check the Minoxidil 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
Ethanol 7 mg/mL
DMSO 2 mg/mL (9.55 mM) ; Warmed with 60°C water bath ; Ultrasonicated
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)
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 3-hydroxy-2-imino-6-piperidin-1-ylpyrimidin-4-amine
CAS Number 38304-91-5
Molecular Formula

C9H15N5O

Molecular Weight (MW) 209.25
SMILES C1CCN(CC1)C2=NC(=N)N(C(=C2)N)O
InChIKey ZIMGGGWCDYVHOY-UHFFFAOYSA-N
Note: Technical data last updated: Sep 1, 2026.