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Labetalol HCl Adrenergic Receptor antagonist

Name: Labetalol HCl
Brand: Selleck Chemicals
SKU: S4291
Availability: InStock
Rating: 5 (4 reviews)

Cat.No.S4291

Labetalol HCl(AH-5158 hydrochloride,Labetalol hydrochloride,Sch-15719W) is a dual antagonist for both selective alpha1-adrenergic and nonselective beta-adrenergic receptors, used in the treatment of high blood pressure.

Chemical Structure

Molecular Weight: 364.87

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Quality Control

Batch: Purity: 99.99%

99.99

Related Targets	CXCR Hedgehog/Smoothened PKA AChR 5-HT Receptor Histamine Receptor Dopamine Receptor Ras KRas GPR
Other Adrenergic Receptor Inhibitors	ICI 118551 Hydrochloride (Zenidolol) L755507 Yohimbine HCl Atipamezole Higenamine hydrochloride Noradrenaline bitartrate monohydrate Fenoterol hydrobromide Medetomidine HCl Isoprenaline L-Adrenaline

Solubility

In vitro
Batch:

DMSO : 72 mg/mL (197.33 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : 8 mg/mL

Ethanol : 7 mg/mL

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	3.6mg/ml (9.87mM)	Taking the 1 mL working solution as an example, add 50 μL of 72 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.51mg/ml (1.40mM)	Taking the 1 mL working solution as an example, add 50 μL of 10.2 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.

In vivo Formulation Calculator (Clear solution)

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

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

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

% DMSO

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.

Chemical Information, Storage & Stability

Molecular Weight	364.87	Formula	C₁₉H₂₅ClN₂O₃	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	32780-64-6	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	AH-5158 hydrochloride,Labetalol hydrochloride,Sch-15719W			SMILES	CC(CCC1=CC=CC=C1)NCC(C2=CC(=C(C=C2)O)C(=O)N)O.Cl

Read more about storage stability stock solution CAS number SMILES

Mechanism of Action

Targets/IC₅₀/Ki	α1-adrenergic receptor β-adrenergic receptor

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2026-08-03)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT07363343	RECRUITING	Hypertension; Postpartum Preeclampsia	The Cleveland Clinic	2026-03-10
NCT06677970	RECRUITING	Acute Ischemic Stroke	Yonsei University	2024-10-01	PHASE3
NCT05551104	RECRUITING	Postpartum Complication; Maternal Hypertension; High Blood Pressure	Loma Linda University	2023-05-08	PHASE3
NCT06915792	RECRUITING	Postpartum Hypertension (PPHT)	University of California, Los Angeles	2025-06-01	PHASE4
NCT05989581	RECRUITING	Hypertension in Pregnancy	University of Alabama at Birmingham	2024-04-24	PHASE1
NCT06385600	UNKNOWN	Severe Pre-eclampsia	Assiut University	2024-05-20

Tech Support

Handling Instructions

Tel: +1-832-582-8158 Ext:3

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