CAS No. 81403-68-1

Batch: Purity:99.96
Alfuzosin HCl  Chemical Structure
Chemical Structure
Check the Alfuzosin HCl product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 81403-68-1
Molecular Formula

C19H27N5O4.HCl

Molecular Weight (MW) 425.91
SMILES CN(CCCNC(=O)C1CCCO1)C2=NC3=CC(=C(C=C3C(=N2)N)OC)OC.Cl

Ordering Information

Biological Activity

Alfuzosin HCl is a potent, selective alpha1-adrenergic receptor antagonist. By blocking alpha1-adrenoceptors in lower urinary tract tissues, alfuzosin inhibits norepinephrine-induced smooth muscle contraction. This antagonism leads to muscle relaxation in the prostate gland and bladder neck, thereby decreasing urethral resistance and alleviating lower urinary tract dysfunction associated with benign prostatic hyperplasia. [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 85 mg/mL (199.57 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 85 mg/mL
Ethanol 85 mg/mL
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.