Catalog No.S5766

For research use only.

Alfuzosin, a quinazoline derivative, is a selective and competitive α1-adrenoceptor antagonist.

Alfuzosin Chemical Structure

CAS No. 81403-80-7

Purity & Quality Control

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Biological Activity

Description Alfuzosin, a quinazoline derivative, is a selective and competitive α1-adrenoceptor antagonist.

Protocol (from reference)

Solubility (25°C)

In vitro

DMSO 78 mg/mL
(200.28 mM)
Ethanol 5 mg/mL
(12.83 mM)
Water Insoluble

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 389.45


CAS No. 81403-80-7
Storage 3 years -20°C powder
2 years -80°C in solvent

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

mg/kg g μL

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO % % Tween 80 % ddH2O

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Molarity Calculator

Mass Concentration Volume Molecular Weight

Clinical Trial Information

NCT Number Recruitment Interventions Conditions Sponsor/Collaborators Start Date Phases
NCT01685658 Withdrawn Drug: Intravenous ketoprofen|Drug: Intravenous paracetamol Renal Colic|Acute Renal Colic Centre Hospitalier Universitaire de Nīmes September 2016 Phase 4
NCT00637715 Completed Drug: Alfuzosin Benign Prostatic Hyperplasia Sanofi October 2003 Phase 4
NCT00290030 Completed Drug: Alfuzosin Prostatic Hyperplasia|Acute Urinary Retention Sanofi May 2001 Phase 3

(data from, updated on 2022-01-17)

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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