Cat. No.: HY-B0497C

Niclosamide olamine

(Synonyms: BAY2353 olamine)

42 Cited Publications

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Based on 42 publication(s) in Google Scholar

Niclosamide (BAY2353) olamine is an orally active antihelminthic agent used in parasitic infection research. Niclosamide olamin is a STAT3 inhibitor with an IC₅₀ of 0.25 μM in HeLa cells. Niclosamide olamin has biological activities against cancer, and inhibits DNA replication in Vero E6 cells.

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Pureté: 98.66%
CAS No.: 1420-04-8
Formule: C₁₅H₁₅Cl₂N₃O₅
Masse moléculaire:388.20

Stockage:

4°C, sealed storage, away from moisture and light

* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

Niclosamide olamine Chemical Structure

CAS No.: 1420-04-8

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Activité biologique
- Description
- In Vitro
- In Vivo
Chemical Information
Publications (42)
Solvant et solubilité
- In Vitro
Pureté et documentation
Références
Help & FAQs
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Activité biologique

Description

Niclosamide (BAY2353) olamine is an orally active antihelminthic agent used in parasitic infection research^[1]. Niclosamide olamin is a STAT3 inhibitor with an IC₅₀ of 0.25 μM in HeLa cells^[4]. Niclosamide olamin has biological activities against cancer, and inhibits DNA replication in Vero E6 cells^[2]^[3]^[5].

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In Vitro

Niclosamide olamine (0.6 nM-46 µM) treatment inhibits adrenocortical carcinoma cellular proliferation in BD140A, SW-13, and NCI-H295R cells^[3].
Niclosamide olamine (0.05-5 μM, 24 h) treatment inhibits STAT3-mediated luciferase reporter activity in HeLa cells ^[4].
Niclosamide olamine (10 μM) treatment inhibits virus replication in Vero E6 cells^[5].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Viability Assay^[3]

Cell Line:

BD140A, SW-13 and NCI-H295R cells
Concentration:

0.6 nM-46 µM
Incubation Time:
Result:

Inhibited cellular proliferation in adrenocortical carcinoma cell lines with the IC₅₀ of 0.12 µM, 0.15 µM, and 0.53 µM in BD140A, SW-13, and NCI-H295R, respectively.

Cell Viability Assay^[4]

Cell Line:

Hela cells
Concentration:

0.05-5 μM
Incubation Time:

24 hours
Result:

Inhibited STAT3-mediated luciferase reporter activity with an IC₅₀ of 0.25 μM.

Cell Viability Assay^[5]

Cell Line:

Vero E6 cells
Concentration:

10 μM
Incubation Time:

2 days
Result:

Inhibited the synthesis of viral antigens of SARS-CoV in Vero E6 cells.

In Vivo

Niclosamide sodium (oral gavage; 100 mg/kg, 200 mg/kg; once a week; 8 weeks) treatment inhibits adrenocortical carcinoma tumor growth in vivo^[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model:

Nu⁺/Nu⁺ mice injected with NCI-H295R cells^[3]
Dosage:

100 mg/kg, 200 mg/kg
Administration:

Oral gavage; 100 mg/kg, 200 mg/kg; once a week; 8 weeks
Result:

Showed a 60%-80% inhibition in tumor growth, as compared to the control group.

Chemical Information

CAS No. 1420-04-8
Appearance Solid
Masse moléculaire 388.20
Formule C₁₅H₁₅Cl₂N₃O₅
Color Light yellow to yellow
SMILES

O=C(NC1=CC=C([N+]([O-])=O)C=C1Cl)C2=CC(Cl)=CC=C2O.NCCO
Synonyms

BAY2353 olamine
Livraison

Room temperature in continental US; may vary elsewhere.
Stockage

4°C, sealed storage, away from moisture and light

* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

Publications (42)

All WBCell Proliferation/Viability AssayIF

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Journal Impact Factor

Cell

SLC7A11 is an unconventional H+ transporter in lysosomes. [Abstract]

2025 Jun 26;188(13):3441-3458.e25. PMID: 40280132
Cell Res

Derivation of totipotent-like stem cells with blastocyst-like structure forming potential. [Abstract]

2022 Jun;32(6):513-529. PMID: 35508506
ACS Nano

An Asynchronous-Regulated Nanosheet Cascade Amplifies Sonodynamic-Triggered Self-Enhanced DNA Damage for Intensive Tumor Immunotherapy. [Abstract]

2025 Jul 15;19(27):25552-25565. PMID: 40601833
ACS Nano

Biomineralization-Tuned Nanounits Reprogram the Signal Transducer and Activator of Transcription 3 Signaling for Ferroptosis-Immunotherapy in Cancer Stem Cells. [Abstract]

2024 Aug 13;18(32):21268-21287. PMID: 39083438
Adv Sci (Weinh)

SNORA28 Promotes Proliferation and Radioresistance in Colorectal Cancer Cells through the STAT3 Pathway by Increasing H3K9 Acetylation in the LIFR Promoter. [Abstract]

2024 Jun 26:e2405332. PMID: 38924373
Cell Death Dis

The anthelmintic drug niclosamide induces GSK-β-mediated β-catenin degradation to potentiate gemcitabine activity, reduce immune evasion ability and suppress pancreatic cancer progression. [Abstract]

2022 Feb 3;13(2):112. PMID: 35115509
ACS Appl Mater Interfaces

Albumin-Based Microneedles for Spatiotemporal Delivery of Temozolomide and Niclosamide to Resistant Glioblastoma. [Abstract]

2024 Aug 28;16(34):44518-44527. PMID: 39145481
J Headache Pain

Inhibition of S100A4 decreases neurotoxic astrocyte reactivity and attenuates neuropathic pain via the TLR4/NF-κB pathway in a rat model of spinal nerve ligation. [Abstract]

2025 May 1;26(1):97. PMID: 40312684
Cell Syst

A Library of Phosphoproteomic and Chromatin Signatures for Characterizing Cellular Responses to Drug Perturbations. [Abstract]

2018 Apr 25;6(4):424-443.e7. PMID: 29655704
Biomed Pharmacother

Niclosamide causes lysosome-dependent cell death in endometrial cancer cells and tumors. [Abstract]

2023 May:161:114422. PMID: 36841028

Niclosamide olamine purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2023 May:161:114422. [Abstract]

Niclosamide (NIC; 5 μM; 24 h) significantly reduces cyclin D1 and vimentin protein expression in human endometrial cancer cells.

Niclosamide olamine purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2023 May:161:114422. [Abstract]

Niclosamide (NIC; 0-8 μM; 24, 48, 72 h) significantly inhibits the metabolic viability of AN3CA, Hec1B, and Ishikawa cells both in a dose-dependent and a time-dependent manner, with the half maximal inhibitory concentration of < 1 μM at 72 h.

Niclosamide olamine purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2023 May:161:114422. [Abstract]

Niclosamide (NIC) significantly suppresses the colony formation ability, and reduces the numbers, as well as diameters, of colonies formed in AN3CA, Hec1B, and Ishikawa cells.

Niclosamide olamine purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2023 May:161:114422. [Abstract]

Niclosamide (NIC; 1 μM) reduces number of cells that invaded across the trans-well chamber in Hec1B and Ishikawa endometrial cancer cell lines, suggesting NIC-mediated inhibition of invasive property of endometrial cancer cells.
Emerg Microbes Infect

Obatoclax inhibits SARS-CoV-2 entry by altered endosomal acidification and impaired cathepsin and furin activity in vitro. [Abstract]

2022 Dec;11(1):483-497. PMID: 34989664
Oncogene

LEF1 confers resistance to DNA-damaging chemotherapies through upregulation of PARP1 and NUMA1 in ovarian cancer. [Abstract]

2025 Sep 10. PMID: 40931049
Int J Nanomedicine

Electromechanical Regulation Underlying Protein Nanoparticle-Induced Osmotic Pressure in Neurotoxic Edema. [Abstract]

2025 Apr 5:20:4145-4163. PMID: 40207308
Oncogenesis

GSK3β palmitoylation mediated by ZDHHC4 promotes tumorigenicity of glioblastoma stem cells in temozolomide-resistant glioblastoma through the EZH2-STAT3 axis. [Abstract]

2022 May 23;11(1):28. PMID: 35606353
Biochem Pharmacol

Repurposing of the anti-helminthic drug niclosamide to treat melanoma and pulmonary metastasis via the STAT3 signaling pathway. [Abstract]

2019 Nov;169:113610. PMID: 31465777
Virulence

Newcastle disease virus acquires phosphatidylserine through the budding process to enhance infectivity. [Abstract]

2025 Oct 28:2580150. PMID: 41147668
Nat Prod Bioprospect

Exploring anti-SARS-CoV-2 natural products: dual-viral target inhibition by delphinidin and the anti-coronaviral efficacy of deapio platycodin D. [Abstract]

2025 Jun 13;15(1):39. PMID: 40512442
Int J Mol Sci

S100A4 Promotes BCG-Induced Pyroptosis of Macrophages by Activating the NF-κB/NLRP3 Inflammasome Signaling Pathway. [Abstract]

2023 Aug 11;24(16):12709. PMID: 37628889
Int J Mol Sci

The Activation of Reticulophagy by ER Stress through the ATF4-MAP1LC3A-CCPG1 Pathway in Ovarian Granulosa Cells Is Linked to Apoptosis and Necroptosis. [Abstract]

2023 Feb 1;24(3):2749. PMID: 36769070
iScience

Niclosamide suppresses gastric cancer progression through YTHDF2 inhibition-affected lactate metabolic reprogramming. [Abstract]

2025 Oct 27;28(11):113868. PMID: 41323282
Antiviral Res

Niclosamide inhibits the replication of highly pathogenic avian influenza A (H5Nx) viruses and antiviral-resistant mutants. [Abstract]

2026 Jul:251:106421. PMID: 42070632
J Funct Foods

2024 Oct.
Antiviral Res

Niclosamide inhibits hepatitis E virus through suppression of NF-kappaB signalling. [Abstract]

2022 Jan:197:105228. PMID: 34929248
Cell Signal

STAT1/3 signaling suppresses axon degeneration and neuronal cell death through regulation of NAD+-biosynthetic and consuming enzymes. [Abstract]

2023 Aug:108:110717. PMID: 37187216
Viruses

Ionophore Antibiotics Inhibit Type II Feline Coronavirus Proliferation In Vitro. [Abstract]

2022 Aug 6;14(8):1734. PMID: 36016355
Viruses

M Segment-Based Minigenome System of Severe Fever with Thrombocytopenia Syndrome Virus as a Tool for Antiviral Drug Screening. [Abstract]

2021 Jun 3;13(6):1061. PMID: 34205062
Viruses

Screening and Identification of Lujo Virus Inhibitors Using a Recombinant Reporter Virus Platform. [Abstract]

2021 Jun 28;13(7):1255. PMID: 34203149
Int J Parasitol Drugs Drug Resist

Evaluation of the inhibitory effects of emodin on Neospora caninum invasion and proliferation in vitro. [Abstract]

2025 Dec:29:100624. PMID: 41187614
J Cancer

Treatment of HNSC and pulmonary metastasis using the anti-helminthic drug niclosamide to modulate Stat3 signaling activity. [Abstract]

2024 Jun 11;15(13):4406-4416. PMID: 38947381
Exp Eye Res

Niclosamide inhibits TGF-β1-induced fibrosis of human Tenon's fibroblasts by regulating the MAPK-ERK1/2 pathway. [Abstract]

2023 Oct:235:109628. PMID: 37619828
Leuk Lymphoma

Trametinib enhances ATRA-induced differentiation in AML cells. [Abstract]

2021 Dec;62(14):3361-3372. PMID: 34355652
Iran J Immunol

JAK/STAT Signaling Pathway Mediates Anti-Tumor Immunity of CD8+ T Cells in Renal Cancer. [Abstract]

2024 Sep 25;21(3). PMID: 39319693
bioRxiv

2026 Apr 9.
eGastroenterology

Phosphoinositide kinase PIKfyve inhibitor apilimod blocks hepatitis E virus infection. [Abstract]

2026 Mar 31;4(1):e100348. PMID: 41948149
Drug Repurposing

2026 Jan 30.
bioRxiv

2025 Oct 27.
bioRxiv

2025 March 01.
biorxiv

2024 May 27.
University of Gothenburg

2023 Jun 27.
L’UNIVERSITE GRENOBLE ALPES

2021 Apr 13.
Preprints

2021, 2021040399.
Patent

US20180263995A1.

Solvant et solubilité

In Vitro:

DMSO : 125 mg/mL (322.00 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

2.5760 mL

12.8800 mL

25.7599 mL

5 mM

0.5152 mL

2.5760 mL

5.1520 mL

10 mM

0.2576 mL

1.2880 mL

2.5760 mL

Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.

Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Calculateur de molarité

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass Mass

Concentration Concentration

Volume Volume

Molecular Weight Molecular Weight

Calculateur de dilution

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

Concentration _(start) Concentration _(start)

Volume _(start) Volume _(start)

Concentration _(final) Concentration _(final)

Volume _(final) Volume _(final)

Pureté et documentation

Select Batch:

Pureté: 99.98%

Assay: 99.98%

ee.: 99.98%

Fiche technique (280 KB)
SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Portuguese - PT (393 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Instruction de manipulation (2659 KB)

Références

[1]. P Andrews, et al. The biology and toxicology of molluscicides, Bayluscide. Pharmacol Ther. 1982;19(2):245-95. [Content Brief]

[2]. Wei Chen, et al. Niclosamide: Beyond an antihelminthic drug. Cell Signal. 2018 Jan;41:89-96. [Content Brief]

[3]. Kei Satoh, et al. Identification of Niclosamide as a Novel Anticancer Agent for Adrenocortical Carcinoma. Clin Cancer Res. 2016 Jul 15;22(14):3458-66. [Content Brief]

[4]. Xiaomei Ren, et al. Identification of Niclosamide as a New Small-Molecule Inhibitor of the STAT3 Signaling Pathway. ACS Med Chem Lett. 2010 Sep 7;1(9):454-9. [Content Brief]

[5]. Chang-Jer Wu, et al. Inhibition of severe acute respiratory syndrome coronavirus replication by niclosamide. Antimicrob Agents Chemother. 2004 Jul;48(7):2693-6. [Content Brief]

Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	2.5760 mL	12.8800 mL	25.7599 mL	64.3998 mL
	5 mM	0.5152 mL	2.5760 mL	5.1520 mL	12.8800 mL
	10 mM	0.2576 mL	1.2880 mL	2.5760 mL	6.4400 mL
	15 mM	0.1717 mL	0.8587 mL	1.7173 mL	4.2933 mL
	20 mM	0.1288 mL	0.6440 mL	1.2880 mL	3.2200 mL
	25 mM	0.1030 mL	0.5152 mL	1.0304 mL	2.5760 mL
	30 mM	0.0859 mL	0.4293 mL	0.8587 mL	2.1467 mL
	40 mM	0.0644 mL	0.3220 mL	0.6440 mL	1.6100 mL
	50 mM	0.0515 mL	0.2576 mL	0.5152 mL	1.2880 mL
	60 mM	0.0429 mL	0.2147 mL	0.4293 mL	1.0733 mL
	80 mM	0.0322 mL	0.1610 mL	0.3220 mL	0.8050 mL
	100 mM	0.0258 mL	0.1288 mL	0.2576 mL	0.6440 mL

Keywords

Niclosamide olamine

42 Cited Publications

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Niclosamide olamine

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Publications Citing Use of MedChemExpress (MCE) Niclosamide olamine

Voir tous les produits spécifiques à Isoform Parasite

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Activité biologique

Chemical Information

Publications (42)

Solvant et solubilité

Pureté et documentation

Références

Help & FAQs

Complete Stock Solution Preparation Table

Niclosamide olamine Related Classifications

Cat. No.: HY-B0497C