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Metoprolol Adrenergic Receptor antagonist

Name: Metoprolol
Brand: Selleck Chemicals
SKU: S5430
Availability: InStock
Rating: 5 (10 reviews)

Cat.No.S5430

Metoprolol is a cardioselective β1-adrenergic blocking agent with log Kd values of −7.26±0.07, −6.89±0.09, −5.16±0.12 for β1, β2, and β3 adrenoceptors, respectively. It is used for acute myocardial infarction, heart failure, angina pectoris and mild to moderate hypertension.

Chemical Structure

Molecular Weight: 267.36

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Quality Control

Batch: Purity: 99.99%

99.99

Related Targets	AChR 5-HT Receptor COX Calcium Channel Histamine Receptor Dopamine Receptor GABA Receptor TRP Channel Cholinesterase (ChE) GluR
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 : 53 mg/mL (198.23 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : 53 mg/mL

Ethanol : 53 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.
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.	5mg/ml (18.70mM)	Taking the 1 mL working solution as an example, add 50 μL of 100 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.	5.5mg/ml (20.57mM)	Taking the 1 mL working solution as an example, add 50 μL of 110 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	267.36	Formula	C₁₅H₂₅NO₃	Storage (From the date of receipt)	3 years -20°C powder
CAS No.	51384-51-1	--		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			SMILES	CC(C)NCC(COC1=CC=C(C=C1)CCOC)O

Read more about storage stability stock solution CAS number SMILES

Mechanism of Action

Targets/IC₅₀/Ki	β1-adrenergic receptor
References	[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1576008/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2025-09-18)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT06964464	RECRUITING	Heart Failure With Reduced Ejection Fraction (HFrEF); Sudden Cardiac Death; Ventricular Arrhythmia; Implantable Cardioverter Defibrillator (ICD); Beta-blocker Therapy; Cardiomyopathy	University of Rochester	2025-08-17	PHASE4
NCT07519161	NOT_YET_RECRUITING	Atrial Fibrillation	Shanghai East Hospital	2026-04-07
NCT07490067	RECRUITING	Heart Failure With Reduced Ejection Fraction	University of Michigan	2026-10	PHASE4
NCT07445789	NOT_YET_RECRUITING	Atrial Fibrillation (AF)	Martini Hospital Groningen	2026-06	PHASE4
NCT07632157	NOT_YET_RECRUITING	Atrial Flutter With Rapid Ventricular Response	Wake Forest University Health Sciences	2026-10	PHASE3
NCT07755904	NOT_YET_RECRUITING	Cardiomyopathy, Hypertrophic Obstructive	Braveheart Bio, Inc.	2026-10	PHASE3

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Handling Instructions

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