Cat. No.: HY-B0497

Niclosamide

(Synonyms: BAY2353)

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

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Pureté: 99.96%
CAS No.: 50-65-7
Formule: C₁₃H₈Cl₂N₂O₄
Masse moléculaire:327.12

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Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 1 year , -20°C, 6 months

Niclosamide Chemical Structure

CAS No.: 50-65-7

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- In Vitro
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Publications (42)
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Activité biologique

Description

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

IC₅₀ & Target

STAT3

0.25 μM (IC₅₀, in HeLa cells)

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Cellular Effect

Cell Line	Type	Value	Description	References
A-431	IC₅₀	8.8 μM Compound: 5	Antiproliferative activity against human A431 cells after 72 hrs by MTT assay Antiproliferative activity against human A431 cells after 72 hrs by MTT assay	[PMID: 24900231]
A549	CC₅₀	22.9 μM Compound: 1	Cytotoxicity against human A549 cells assessed as reduction in cell viability incubated for 48 hrs by alamarBlue assay Cytotoxicity against human A549 cells assessed as reduction in cell viability incubated for 48 hrs by alamarBlue assay	[PMID: 33112138]
A549	CC₅₀	22.9 μM Compound: 6	Cytotoxicity against human A549 cells assessed as reduction in cell viability after 48 hrs by alamar blue assay Cytotoxicity against human A549 cells assessed as reduction in cell viability after 48 hrs by alamar blue assay	[PMID: 32045239]
A549	IC₅₀	0.4 μM Compound: Niclosamide	Antiproliferative activity against human A549 cells after 120 hrs by MTT assay Antiproliferative activity against human A549 cells after 120 hrs by MTT assay	[PMID: 16680159]
A549	IC₅₀	3 μM Compound: 5	Antiproliferative activity against human A549 cells after 72 hrs by MTT assay Antiproliferative activity against human A549 cells after 72 hrs by MTT assay	[PMID: 24900231]
ASPC1	IC₅₀	1.47 μM Compound: 1	Cytotoxicity against human AsPC1 cells after 72 hrs by MTS assay Cytotoxicity against human AsPC1 cells after 72 hrs by MTS assay	[PMID: 23459613]
ASPC1	IC₅₀	1.47 μM Compound: Niclosamide	CYtotoxicity against human AsPC1 cells by MTS assay CYtotoxicity against human AsPC1 cells by MTS assay	[PMID: 23416191]
BHK-21	CC₅₀	>20 μM Compound: 104	Cytotoxicity against BHK21 cells assessed as reduction in cell viability after 16 hrs by CCK-8 assay Cytotoxicity against BHK21 cells assessed as reduction in cell viability after 16 hrs by CCK-8 assay	[PMID: 28689975]
Bone marrow cell	IC₅₀	>10 μM Compound: 89	Cytotoxicity against human bone marrow cells incubated for 3 days by CellTiter-Glo luminescent assay Cytotoxicity against human bone marrow cells incubated for 3 days by CellTiter-Glo luminescent assay	[PMID: 31253529]
Cancer cell lines	IC₅₀	0.13 μM Compound: 1	Cytotoxicity against human blood cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay Cytotoxicity against human blood cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay	[PMID: 26272032]
Cancer cell lines	IC₅₀	0.13 μM Compound: 1	Cytotoxicity against human breast cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay Cytotoxicity against human breast cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay	[PMID: 26272032]
Cancer cell lines	IC₅₀	0.13 μM Compound: 1	Cytotoxicity against human colon cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay Cytotoxicity against human colon cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay	[PMID: 26272032]
Cancer cell lines	IC₅₀	0.13 μM Compound: 1	Cytotoxicity against human lung cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay Cytotoxicity against human lung cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay	[PMID: 26272032]
Cancer cell lines	IC₅₀	0.13 μM Compound: 1	Cytotoxicity against human ovarian cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay Cytotoxicity against human ovarian cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay	[PMID: 26272032]
Cancer cell lines	IC₅₀	0.13 μM Compound: 1	Cytotoxicity against human pancreatic cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay Cytotoxicity against human pancreatic cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay	[PMID: 26272032]
Cancer cell lines	IC₅₀	0.13 μM Compound: 1	Cytotoxicity against human prostate cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay Cytotoxicity against human prostate cancer cells assessed as growth inhibition after 72 hrs by Cell Titer Glo Assay	[PMID: 26272032]
CWR22R	IC₅₀	1.61 μM Compound: 1	Antiproliferative activity against human AR-positive 22Rv1 cells assessed as cell growth inhibition incubated for 3 days by WST-1 assay Antiproliferative activity against human AR-positive 22Rv1 cells assessed as cell growth inhibition incubated for 3 days by WST-1 assay	[PMID: 35772635]
DLD-1	IC₅₀	2.39 μM Compound: Niclosamide	Antiproliferative activity against human DLD1 cells after 72 hrs by colorimetric MTS assay Antiproliferative activity against human DLD1 cells after 72 hrs by colorimetric MTS assay	[PMID: 30274939]
DU-145	IC₅₀	0.7 μM Compound: 5	Antiproliferative activity against human DU145 cells after 72 hrs by MTT assay Antiproliferative activity against human DU145 cells after 72 hrs by MTT assay	[PMID: 24900231]
DU-145	IC₅₀	0.7 μM Compound: 5	Growth inhibition of human DU145 cells assessed as inhibition of colony formation after 11 to 12 days by crystal violet staining based microscopic analysis Growth inhibition of human DU145 cells assessed as inhibition of colony formation after 11 to 12 days by crystal violet staining based microscopic analysis	[PMID: 24900231]
DU-145	IC₅₀	3.65 μM Compound: 1	Antiproliferative activity against human AR-negative DU-145 cells assessed as cell growth inhibition incubated for 3 days by WST-1 assay Antiproliferative activity against human AR-negative DU-145 cells assessed as cell growth inhibition incubated for 3 days by WST-1 assay	[PMID: 35772635]
HCT-116	EC₅₀	0.056 μM Compound: 1	Effect on ATP homeostasis in human HCT116 cells assessed as reduction in ATP level after 3 hrs in absence of glucose by ATP bioluminescent assay Effect on ATP homeostasis in human HCT116 cells assessed as reduction in ATP level after 3 hrs in absence of glucose by ATP bioluminescent assay	[PMID: 28233680]
HCT-116	IC₅₀	0.25 μM Compound: 1	Effect on ATP homeostasis in human HCT116 cells assessed as reduction in ATP level after 3 hrs in absence of glucose by ATP bioluminescent assay Effect on ATP homeostasis in human HCT116 cells assessed as reduction in ATP level after 3 hrs in absence of glucose by ATP bioluminescent assay	[PMID: 28233680]
HCT-116	IC₅₀	0.32 μM Compound: 53	Antiproliferative activity against human HCT-116 cells measured after 72 hrs by SRB method Antiproliferative activity against human HCT-116 cells measured after 72 hrs by SRB method	[PMID: 38142509]
HCT-116	IC₅₀	0.41 μM Compound: Niclosamide	Antiproliferative activity against human HCT116 cells after 72 hrs by colorimetric MTS assay Antiproliferative activity against human HCT116 cells after 72 hrs by colorimetric MTS assay	[PMID: 30274939]
HCT-116	IC₅₀	0.45 μM Compound: 1	Cytotoxicity against human HCT116 cells assessed as growth inhibition after 72 hrs by MTS assay Cytotoxicity against human HCT116 cells assessed as growth inhibition after 72 hrs by MTS assay	[PMID: 26272032]
HCT-116	IC₅₀	0.45 μM Compound: Niclosamide	Antiproliferative activity against human HCT-116 cells assessed as inhibition of cell viability after 48 hrs by MTT assay Antiproliferative activity against human HCT-116 cells assessed as inhibition of cell viability after 48 hrs by MTT assay	[PMID: 33774344]
HEK293	IC₅₀	0.34 μM Compound: 1	Inhibition of Wnt/beta-catenin in HEK293 cells assessed as inhibition of Wnt3A-stimulated TOPFlash activity after 8 hrs Inhibition of Wnt/beta-catenin in HEK293 cells assessed as inhibition of Wnt3A-stimulated TOPFlash activity after 8 hrs	[PMID: 26272032]
HEK293	IC₅₀	0.34 μM Compound: 1	Inhibition of Wnt3A-stimulated Wnt/beta-catenin pathway in HEK293 cells transfected with p8xTOPFlash, Renilla luciferase plasmid pRL-TK and pLKO.1 after 8 hrs by Dual topflash luciferase reporter gene assay Inhibition of Wnt3A-stimulated Wnt/beta-catenin pathway in HEK293 cells transfected with p8xTOPFlash, Renilla luciferase plasmid pRL-TK and pLKO.1 after 8 hrs by Dual topflash luciferase reporter gene assay	[PMID: 30551901]
HEK293	IC₅₀	0.4 μM Compound: Niclosamide	Inhibition of Wnt3A/beta-casein signaling in HEK293 cells after 8 hrs by TOPflash reporter assay Inhibition of Wnt3A/beta-casein signaling in HEK293 cells after 8 hrs by TOPflash reporter assay	[PMID: 23453073]
HEK293	IC₅₀	1.53 μM Compound: 89	Inhibition of KIX-RLucN fused CBP (unknown origin) binding to KID-RLucC fused CREB (unknown origin) transfected in human HEK293 cells preincubated with compound 30 mins before before forskolin addition and measured after 90 mins in presence of coelenteraz Inhibition of KIX-RLucN fused CBP (unknown origin) binding to KID-RLucC fused CREB (unknown origin) transfected in human HEK293 cells preincubated with compound 30 mins before before forskolin addition and measured after 90 mins in presence of coelenteraz	[PMID: 31253529]
HeLa	IC₅₀	0.25 μM Compound: 5	Inhibition of STAT3 in human HeLa cells after 24 hrs by luciferase reporter gene assay Inhibition of STAT3 in human HeLa cells after 24 hrs by luciferase reporter gene assay	[PMID: 24900231]
HeLa	IC₅₀	1.4 μM Compound: 5	Antiproliferative activity against human HeLa cells after 72 hrs by MTT assay Antiproliferative activity against human HeLa cells after 72 hrs by MTT assay	[PMID: 24900231]
HepG2 2.2.15	CC₅₀	>100 μM Compound: Niclosamide	Cytotoxicity against human HepG2(2.2.15) cells after 24 hrs by neutral red dye uptake assay Cytotoxicity against human HepG2(2.2.15) cells after 24 hrs by neutral red dye uptake assay	[PMID: 21553812]
HL-60	IC₅₀	0.3 μM Compound: 89	Cytotoxicity against human HL60 cells incubated for 3 days by CellTiter-Glo luminescent assay Cytotoxicity against human HL60 cells incubated for 3 days by CellTiter-Glo luminescent assay	[PMID: 31253529]
HT-29	IC₅₀	0.13 μM Compound: Niclosamide	Antiproliferative activity against human HT-29 cells after 72 hrs by colorimetric MTS assay Antiproliferative activity against human HT-29 cells after 72 hrs by colorimetric MTS assay	[PMID: 30274939]
HT-29	IC₅₀	4.66 μM Compound: 53	Antiproliferative activity against human HT-29 cells measured after 72 hrs by SRB method Antiproliferative activity against human HT-29 cells measured after 72 hrs by SRB method	[PMID: 38142509]
HT-29	IC₅₀	7.2 μM Compound: 5	Antiproliferative activity against human HT-29 cells after 72 hrs by MTT assay Antiproliferative activity against human HT-29 cells after 72 hrs by MTT assay	[PMID: 24900231]
J774.A1	CC₅₀	42.11 μM Compound: 33	Cytotoxicity against mouse J774A.1 cells assessed as reduction in cell viability by MTT assay Cytotoxicity against mouse J774A.1 cells assessed as reduction in cell viability by MTT assay	[PMID: 36565533]
Jurkat	IC₅₀	0.4 μM Compound: 89	Cytotoxicity against human Jurkat cells incubated for 3 days by CellTiter-Glo luminescent assay Cytotoxicity against human Jurkat cells incubated for 3 days by CellTiter-Glo luminescent assay	[PMID: 31253529]
KG-1	IC₅₀	0.36 μM Compound: 89	Cytotoxicity against human KG1 cells incubated for 3 days by CellTiter-Glo luminescent assay Cytotoxicity against human KG1 cells incubated for 3 days by CellTiter-Glo luminescent assay	[PMID: 31253529]
LN-229	IC₅₀	0.3 μM Compound: 77	Antiproliferative activity against human LN229 cells after 5 days by AlamarBlue assay Antiproliferative activity against human LN229 cells after 5 days by AlamarBlue assay	[PMID: 30583248]
LNCaP	IC₅₀	0.8 μM Compound: 1	Antiproliferative activity against human AR-positive LNCaP cells assessed as cell growth inhibition incubated for 3 days by WST-1 assay Antiproliferative activity against human AR-positive LNCaP cells assessed as cell growth inhibition incubated for 3 days by WST-1 assay	[PMID: 35772635]
LoVo	IC₅₀	0.7 μM Compound: Niclosamide	Antiproliferative activity against human LoVo cells after 120 hrs by MTT assay Antiproliferative activity against human LoVo cells after 120 hrs by MTT assay	[PMID: 16680159]
MCF7	IC₅₀	1.06 μM Compound: 1	Cytotoxicity against human ER positive MCF7 cells after 72 hrs by MTS assay Cytotoxicity against human ER positive MCF7 cells after 72 hrs by MTS assay	[PMID: 23459613]
MCF7	IC₅₀	1.06 μM Compound: Niclosamide	CYtotoxicity against ER-positive human MCF7 cells by MTS assay CYtotoxicity against ER-positive human MCF7 cells by MTS assay	[PMID: 23416191]
MCF7	IC₅₀	8.13 μM Compound: 1	Antiproliferative activity against human MCF7 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay Antiproliferative activity against human MCF7 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay	[PMID: 35334447]
MDA-MB-231	IC₅₀	0.625 μM Compound: 27	Anticancer activity against human MDA-MB-231 cells assessed as cell growth inhibition incubated for 24 hrs by MTT assay Anticancer activity against human MDA-MB-231 cells assessed as cell growth inhibition incubated for 24 hrs by MTT assay	[PMID: 33650861]
MDA-MB-231	IC₅₀	0.79 μM Compound: 1	Cytotoxicity against human ER negative MDA-MB-231 cells after 72 hrs by MTS assay Cytotoxicity against human ER negative MDA-MB-231 cells after 72 hrs by MTS assay	[PMID: 23459613]
MDA-MB-231	IC₅₀	0.79 μM Compound: Niclosamide	CYtotoxicity against ER-negative human MDA-MB-231 cells by MTS assay CYtotoxicity against ER-negative human MDA-MB-231 cells by MTS assay	[PMID: 23416191]
MDA-MB-231	IC₅₀	0.8 μM Compound: Niclosamide	Antiproliferative activity against human MDA-MB-231 cells assessed as inhibition of cell viability after 48 hrs by MTT assay Antiproliferative activity against human MDA-MB-231 cells assessed as inhibition of cell viability after 48 hrs by MTT assay	[PMID: 33774344]
MDA-MB-231	IC₅₀	1.78 μM Compound: 1	Antiproliferative activity against human MDA-MB-231 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay Antiproliferative activity against human MDA-MB-231 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay	[PMID: 35334447]
MIA PaCa-2	IC₅₀	1.1 μM Compound: Niclosamide	Antiproliferative activity against human MIAPaCa2cells after 120 hrs by MTT assay Antiproliferative activity against human MIAPaCa2cells after 120 hrs by MTT assay	[PMID: 16680159]
NALM-6	IC₅₀	0.62 μM Compound: 89	Cytotoxicity against human NALM6 cells incubated for 3 days by CellTiter-Glo luminescent assay Cytotoxicity against human NALM6 cells incubated for 3 days by CellTiter-Glo luminescent assay	[PMID: 31253529]
PANC-1	IC₅₀	1.73 μM Compound: 1	Cytotoxicity against human PANC1 cells after 72 hrs by MTS assay Cytotoxicity against human PANC1 cells after 72 hrs by MTS assay	[PMID: 23459613]
PANC-1	IC₅₀	1.73 μM Compound: Niclosamide	CYtotoxicity against human PANC1 cells by MTS assay CYtotoxicity against human PANC1 cells by MTS assay	[PMID: 23416191]
PC-3	IC₅₀	0.4 μM Compound: Niclosamide	Antiproliferative activity against human PC3 cells after 120 hrs by MTT assay Antiproliferative activity against human PC3 cells after 120 hrs by MTT assay	[PMID: 16680159]
PC-3	IC₅₀	1.92 μM Compound: 1	Antiproliferative activity against human AR-negative PC-3 cells assessed as cell growth inhibition incubated for 3 days by WST-1 assay Antiproliferative activity against human AR-negative PC-3 cells assessed as cell growth inhibition incubated for 3 days by WST-1 assay	[PMID: 35772635]
PC-3	IC₅₀	11.7 μM Compound: 5	Antiproliferative activity against human PC3 cells after 72 hrs by MTT assay Antiproliferative activity against human PC3 cells after 72 hrs by MTT assay	[PMID: 24900231]
SH-SY5Y	IC₅₀	0.87 μM Compound: Niclosamide	Anticancer activity against human SH-SY5Y cells assessed as reduction in cell viability incubated for 48 hrs by resazurin dye based fluorescence assay Anticancer activity against human SH-SY5Y cells assessed as reduction in cell viability incubated for 48 hrs by resazurin dye based fluorescence assay	[PMID: 36208544]
SK-N-AS	IC₅₀	2.33 μM Compound: Niclosamide	Anticancer activity against human SK-N-AS cells assessed as reduction in cell viability incubated for 48 hrs by resazurin dye based fluorescence assay Anticancer activity against human SK-N-AS cells assessed as reduction in cell viability incubated for 48 hrs by resazurin dye based fluorescence assay	[PMID: 36208544]
SNB-19	IC₅₀	0.12 μM Compound: 1	Antiviral activity against Zika virus infected in SNB-19 cells assessed as reduction in viral titer Antiviral activity against Zika virus infected in SNB-19 cells assessed as reduction in viral titer	[PMID: 33689873]
SW480	IC₅₀	0.98 μM Compound: Niclosamide	Antiproliferative activity against human SW480 cells after 72 hrs by colorimetric MTS assay Antiproliferative activity against human SW480 cells after 72 hrs by colorimetric MTS assay	[PMID: 30274939]
SW480	IC₅₀	1 μM Compound: 93	Anticancer activity against human SW480 cells assessed as reduction in cell viability incubated for 12 to 24 hrs by MTS assay Anticancer activity against human SW480 cells assessed as reduction in cell viability incubated for 12 to 24 hrs by MTS assay	[PMID: 33445154]
SW948	IC₅₀	0.11 μM Compound: Niclosamide	Antiproliferative activity against human SW948 cells after 72 hrs by colorimetric MTS assay Antiproliferative activity against human SW948 cells after 72 hrs by colorimetric MTS assay	[PMID: 30274939]
T98G	IC₅₀	0.3 μM Compound: 77	Antiproliferative activity against human T98G cells after 5 days by AlamarBlue assay Antiproliferative activity against human T98G cells after 5 days by AlamarBlue assay	[PMID: 30583248]
U138-MG	IC₅₀	0.3 μM Compound: 77	Antiproliferative activity against human U138MG cells after 5 days by AlamarBlue assay Antiproliferative activity against human U138MG cells after 5 days by AlamarBlue assay	[PMID: 30583248]
U2OS	CC₅₀	>20 μM Compound: 104	Cytotoxicity against human U2OS cells assessed as reduction in cell viability after 16 hrs by CCK-8 assay Cytotoxicity against human U2OS cells assessed as reduction in cell viability after 16 hrs by CCK-8 assay	[PMID: 28689975]
U-373MG ATCC	IC₅₀	0.3 μM Compound: 77	Antiproliferative activity against human U373 cells after 5 days by AlamarBlue assay Antiproliferative activity against human U373 cells after 5 days by AlamarBlue assay	[PMID: 30583248]
U-87MG ATCC	IC₅₀	0.3 μM Compound: 77	Antiproliferative activity against human U87 cells after 5 days by AlamarBlue assay Antiproliferative activity against human U87 cells after 5 days by AlamarBlue assay	[PMID: 30583248]
U-87MG ATCC	IC₅₀	0.4 μM Compound: Niclosamide	Antiproliferative activity against human U87MG cells after 120 hrs by MTT assay Antiproliferative activity against human U87MG cells after 120 hrs by MTT assay	[PMID: 16680159]
Vero	CC₅₀	>50 μM Compound: Niclosamide	Cell viability measured by CellTiter-Glo assay in Vero cells at MOI 0.05 after 72hr Cell viability measured by CellTiter-Glo assay in Vero cells at MOI 0.05 after 72hr	10.1101/2020.03.20.999730
Vero	CC₅₀	22.1 μM Compound: 21	Cytotoxicity against Vero E6 cells by MTT assay Cytotoxicity against Vero E6 cells by MTT assay	[PMID: 17663539]
Vero	CC₅₀	3.058 μM Compound: 33	Cytotoxicity against African green monkey Vero cells assessed as reduction in cell viability by MTT assay Cytotoxicity against African green monkey Vero cells assessed as reduction in cell viability by MTT assay	[PMID: 36565533]
Vero	EC₅₀	<0.1 μM Compound: 21	Antiviral activity against SARS coronavirus in Vero E6 cells assessed as inhibition of viral replication by ELISA Antiviral activity against SARS coronavirus in Vero E6 cells assessed as inhibition of viral replication by ELISA	[PMID: 17663539]
Vero	IC₅₀	0.28 μM Compound: Niclosamide	Antiviral activity against SARS-CoV-2 (viral titer) measured by plaque assay in Vero cells at MOI 0.0125 after 24 hr Antiviral activity against SARS-CoV-2 (viral titer) measured by plaque assay in Vero cells at MOI 0.0125 after 24 hr	10.1101/2020.03.20.999730
Vero C1008	CC₅₀	>35.53 μM Compound: Niclosamide	Cytotoxicity against African green monkey Vero E6 cells assessed as reduction of cell viability measured after 48 hrs by CCK-8 assay Cytotoxicity against African green monkey Vero E6 cells assessed as reduction of cell viability measured after 48 hrs by CCK-8 assay	[PMID: 32563814]
Vero C1008	CC₅₀	1.03 μM Compound: 1	Cytotoxicity against African Green monkey Vero E6 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay Cytotoxicity against African Green monkey Vero E6 cells assessed as reduction in cell viability measured after 48 hrs by MTT assay	[PMID: 35344901]
Vero C1008	CC₅₀	1.96 μM Compound: NIC	Cytotoxicity against African green monkey Vero E6 cells assessed as reduction in cell viability measured after 48 hrs by CCK-8 assay Cytotoxicity against African green monkey Vero E6 cells assessed as reduction in cell viability measured after 48 hrs by CCK-8 assay	[PMID: 37058956]
Vero C1008	CC₅₀	100 μM Compound: 1	Cytotoxicity against African green monkey Vero E6 cells assessed as reduction in cell viability preincubated for 2 hrs followed by SARS-CoV-2 addition measured after 24 hrs by CPE assay Cytotoxicity against African green monkey Vero E6 cells assessed as reduction in cell viability preincubated for 2 hrs followed by SARS-CoV-2 addition measured after 24 hrs by CPE assay	[PMID: 35344901]
Vero C1008	EC₅₀	4.63 μM Compound: NIC	Antiviral activity against SARS-CoV-2 infected in African green monkey Vero E6 cells assessed as inhibition of viral replication incubated for 24 hrs by IFA assay Antiviral activity against SARS-CoV-2 infected in African green monkey Vero E6 cells assessed as inhibition of viral replication incubated for 24 hrs by IFA assay	[PMID: 37058956]

In Vitro

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

Cell Line:

Vero E6 cells^[5]
Concentration:

10 μM
Incubation Time:

2 days
Result:

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

In Vivo

Niclosamide (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.

Essai clinique

NCT Number	Sponsor	Condition	Start Date	Phase A549
NCT01329991	Plexxikon\|		2011-05	PHASE1

Chemical Information

CAS No. 50-65-7
Appearance Solid
Masse moléculaire 327.12
Formule C₁₃H₈Cl₂N₂O₄
Color Light yellow to green yellow
SMILES

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

BAY2353
Livraison

Room temperature in continental US; may vary elsewhere.

Stockage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	1 year
	-20°C	6 months

Publications (42)

All WBCell Proliferation/Viability AssayIF

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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 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 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 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 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:

DMF : 5 mg/mL (15.28 mM; Need ultrasonic)

DMSO : 4.55 mg/mL (13.91 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

H₂O : < 0.1 mg/mL (insoluble)

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

3.0570 mL

15.2849 mL

30.5698 mL

5 mM

0.6114 mL

3.0570 mL

6.1140 mL

10 mM

0.3057 mL

1.5285 mL

3.0570 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, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

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)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

Stock Solution Working Solution

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMF 40% PEG300 5% Tween-80 45% Saline

Solubility: 0.5 mg/mL (1.53 mM); Suspended solution; Need ultrasonic

Working Solution

For the following dissolution methods, please prepare the working solution directly:

It is recommended to prepare fresh solutions and use them promptly within a short period of time.

The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 15% Cremophor EL 85% Saline

Solubility: 20 mg/mL (61.14 mM); Suspended solution; Need ultrasonic

Protocol 2

Add each solvent one by one: 5% Cremophor EL 95% (20% HP-β-CD in Saline)

Solubility: 5 mg/mL (15.28 mM); Suspended solution; Need ultrasonic

Protocol 3

Add each solvent one by one: 10% Cremophor EL in PBS

Solubility: 3 mg/mL (9.17 mM); Suspended solution; Need ultrasonic

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage Dosage
mg/kg
Animal Weight (Per Animal) Animal Weight (Per Animal)
g
Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL
Number of Animals Number of Animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
%
+
+
%
Tween-80 + +
%
Saline +

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Working solution concentration: 0.22 mg/mL

Pureté et documentation

Select Batch:

Pureté: 99.98%

Assay: 99.98%

ee.: 99.98%

Fiche technique (279 KB)
SDS (398 KB)
- English - EN (398 KB)
- Français - FR (398 KB)
- Deutsch - DE (398 KB)
- Norwegian - NO (398 KB)
- Español - ES (398 KB)
- Swedish - SV (398 KB)
- Italian - IT (398 KB)
- Portuguese - PT (398 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

Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO / DMF	1 mM	3.0570 mL	15.2849 mL	30.5698 mL	76.4246 mL
	5 mM	0.6114 mL	3.0570 mL	6.1140 mL	15.2849 mL
	10 mM	0.3057 mL	1.5285 mL	3.0570 mL	7.6425 mL
DMF	15 mM	0.2038 mL	1.0190 mL	2.0380 mL	5.0950 mL

Keywords

Niclosamide

42 Cited Publications

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Niclosamide

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Publications Citing Use of MedChemExpress (MCE) Niclosamide

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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 Related Classifications

Cat. No.: HY-B0497