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



Product Information

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.


Chemical Formula: C22H26BrClN2O3S


Molecular Weight: 513.88

Elemental Analysis: C, 51.42; H, 5.10; Br, 15.55; Cl, 6.90; N, 5.45; O, 9.34; S, 6.24





Umifenovir HCl

Umifenovir hydrochloride



Chemical Name:

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


InChi Key:



InChi Code: 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


Smiles Code:




Technical Data:


Appearance: White to off-white crystalline powder

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

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, not in water

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001


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.


  1. 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.


  1. 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.


  1. Di Mola A, Peduto A, La Gatta A, Delang L, Pastorino B, Neyts J, Leyssen P, de Rosa M, Filosa R. Structure-activity relationship study of arbidol derivatives as inhibitors of chikungunya virus replication. Bioorg Med Chem. 2014 Nov 1;22(21):6014-25. doi: 10.1016/j.bmc.2014.09.013. Epub 2014 Sep 16. PubMed PMID: 25282648.


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

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