Name: Ebselen
Brand: Selleck Chemicals
SKU: S6676
Availability: InStock
Rating: 5 (5 reviews)

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Quality Control

Batch: Purity: 99.76%

99.76

Related Targets	Integrase Bacterial Antibiotics Anti-infection Fungal Antiviral COVID-19 Parasite Reverse Transcriptase HCV Protease
Other HIV Inhibitors	ABX464 Swertia Bimaculata Extract Zingibroside R1 Oxindole WAY-383487 Fostemsavir Tris CQ31 Ro24-7429

Solubility

In vitro
Batch:

DMSO : 55 mg/mL (200.59 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

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.
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.	1.350mg/ml (4.92mM)	Taking the 1 mL working solution as an example, add 50 μL of 27 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.	0.650mg/ml (2.37mM)	Taking the 1 mL working solution as an example, add 50 μL of 13 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.
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.

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	274.18	Formula	C₁₃H₉NOSe	Storage (From the date of receipt)	3 years -20°C powder
CAS No.	60940-34-3	--		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	DR 3305, SPI-1005, PZ-51, CCG-39161			SMILES	C1=CC=C(C=C1)N2C(=O)C3=CC=CC=C3[Se]2

Read more about storage stability stock solution CAS number SMILES

Mechanism of Action

Targets/IC₅₀/Ki	HIV-1 (Cell-free assay) 46.1 nM
In vitro	Ebselen acts on the early postentry step of the HIV-1 viral cycle prior to reverse transcription by stabilizing the incoming viral capsid.
References	[1] https://www.ncbi.nlm.nih.gov/pubmed/?term=26810656

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2026-07-13)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT06859788	ACTIVE_NOT_RECRUITING	Meniere's Disease; Ménière's Disease	Sound Pharmaceuticals, Incorporated	2025-10-29	PHASE3
NCT06340633	RECRUITING	Hearing Loss; Cochlear Trauma	Sound Pharmaceuticals, Incorporated	2026-12	PHASE2
NCT05117710	UNKNOWN	Depressive Disorder, Treatment-Resistant	University of Oxford	2021-04-22	PHASE1
NCT04484025	ENROLLING_BY_INVITATION	Covid19; Corona Virus Infection; Coronavirus; Coronavirus Infection	Sound Pharmaceuticals, Incorporated	2021-10-12	PHASE2
NCT04677972	COMPLETED	Meniere Disease; Ménière	Sound Pharmaceuticals, Incorporated	2022-08-02	PHASE3
NCT04483973	COMPLETED	Covid19; Coronavirus; Coronavirus Infection; Corona Virus Infection	Sound Pharmaceuticals, Incorporated	2021-08-27	PHASE2

Tech Support

Handling Instructions

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

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Ebselen HIV inhibitor

Chemical Structure

Molecular Weight: 274.18