Catalog No. size PriceQuantity
M7202-2 2mg solid $105
M7202-10 10mg solid $452


Arbidol is an antiviral treatment used in Russia and Chinafor influenza infection. Since 2005 it has been the number one best-selling over-the-counter drug in Russia. Umifenovir inhibits membrane fusion. Umifenovir prevents contact between the virus and target host cells. Fusion between the viral capsid and the cell membrane of the target cell is inhibited. This prevents viral entry to the target cell, and therefore protects it from infection.

Product information

CAS Number: 131707-23-8

Molecular Weight: 513.88

Formula: C22H26BrClN2O3S



Umifenovir HCl

Umifenovir hydrochloride


Chemical Name: ethyl6-bromo-4-((dimethylamino)methyl)-5-hydroxy-1-methyl-2-((phenylthio)methyl)-1H-indole-3-carboxylate hydrochloride

Smiles: Cl.CN(C)CC1=C(O)C(Br)=CC2=C1C(=C(CSC1C=CC=CC=1)N2C)C(=O)OCC


InChi: InChI=1S/C22H25BrN2O3S.ClH/c1-5-28-22(27)20-18(13-29-14-9-7-6-8-10-14)25(4)17-11-16(23)21(26)15(19(17)20)12-24(2)3;/h6-11,26H,5,12-13H2,1-4H3;1H

Technical Data

Appearance: Solid Power.

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Soluble in DMSO, not in water

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined.

HS Tariff Code: 382200

How to use

In Vitro:

Umifenovir hydrochloride exhibits a wide range and potent antiviral activity against a number of viruses including influenza A, B and C viruses, respiratory syncytial virus, adenovirus, parainfluenza type 5 and rhinovirus type 14, avian coronavirus, infectious bronchitis virus and Marek disease virus, hepatitis B virus and hepatitis C virus.

In Vivo:

Umifenovir (45-180 mg/kg; p.o.; daily for 5 days) suppresses the transcription of influenza viruses (IFV) -associated inflammatory cytokines.


  1. Pecheur EI, Borisevich V, Halfmann P, Morrey JD, Smee DF, Prichard M, Mire CE, Kawaoka Y, Geisbert TW, Polyak SJ. The Synthetic Antiviral Drug Arbidol Inhibits Globally Prevalent Pathogenic Viruses. J Virol. 2016 Jan 6. pii: JVI.02077-15. [Epub ahead of print] PubMed PMID: 26739045.
  2. Surov AO, Manin AN, Churakov AV, Perlovich GL. New Solid Forms of the Antiviral Drug Arbidol: Crystal Structures, Thermodynamic Stability, and Solubility. Mol Pharm. 2015 Nov 2;12(11):4154-65. doi: 10.1021/acs.molpharmaceut.5b00629. Epub 2015 Oct 19. PubMed PMID: 26479207.
  3. Kiselev OI, Maleev VV, Deeva ÉG, Leneva IA, Sel'kova EP, Osipova EA, Obukhov AA, Nadorov SA, Kulikova EV. [Clinical efficacy of arbidol (umifenovir) in the therapy of influenza in adults: preliminary results of the multicenter double-blind randomized placebo-controlled study ARBITR]. Ter Arkh. 2015;87(1):88-96. Russian. PubMed PMID: 25823275.

Products are for research use only. Not for human use.

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