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Nucleosides and nucleotides

Viramidine

Also known as Taribavirin, Ribamidine, Ribavirin amidine

CAS 119567-79-2Formula C8H13N5O4Molar mass 243.22 g/mol
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Viramidine chemical structure, C8H13N5O4, CAS 119567-79-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
119567-79-2
Formula
C8H13N5O4
Molar mass
243.22 g/mol
HS code
293499
Category
Nucleosides and nucleotides

What is Viramidine?

Plain description, key identifiers and synonyms

Taribavirin is a nucleobase-containing molecular entity.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,2,4-triazole-3-carboximidamide
CAS number
119567-79-2 CAS number cross-checked
Molecular formula
C8H13N5O4
UNII
R3B1994K2E
InChIKey
NHKZSTHOYNWEEZ-AFCXAGJDSA-N
InChI
InChI=1S/C8H13N5O4/c9-6(10)7-11-2-13(12-7)8-5(16)4(15)3(1-14)17-8/h2-5,8,14-16H,1H2,(H3,9,10)/t3-,4-,5-,8-/m1/s1
Canonical SMILES
N=C(N)c1ncn(C2OC(CO)C(O)C2O)n1
Isomeric SMILES
C1=NC(=NN1[C@H]2[C@@H]([C@@H]([C@H](O2)CO)O)O)C(=N)N

Synonyms

  • Taribavirin
  • Ribamidine
  • Ribavirin amidine
  • taribavirina
  • taribavirine
  • 1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,2,4-triazole-3-carboximidamide
  • 1-beta-D-Ribofuranosyl-1,2,4-triazole-3-carboxamidine
  • taribavirinum
  • 1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl)-1,2,4-triazole-3-carboximidamide
  • Taribavirin free base
  • 1-beta-D-Ribofuranosyl-1H-1,2,4-triazole-3-carboximidamide
  • 1H-1,2,4-Triazole-3-carboximidamide, 1-beta-D-ribofuranosyl-
  • 1-((2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1H-1,2,4-triazole-3-carboximidamide
  • Prodrug of Ribavirin
  • 1-beta-D-Ribofuranosyl-1,2,4-triazole-3-carboximidine
  • 1-beta-D-Ribofuranosyl-1,2,4-triazole-3-carboximidine hydrochloride
  • 1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-1,2,4-triazole-3-carboxamidine

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
243.22 g/molcalc.
Exact mass
243.0968 Dacalc.
LogP (octanol/water)
-2.83calc.
Topological polar surface area
150.5 Ųcalc.
Hydrogen bond donors
5calc.
Hydrogen bond acceptors
7calc.
Rotatable bonds
3calc.
Heavy atoms
17calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.63calc.
Formal charge
0calc.
Stereocentres
4calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ncn(C2CCCO2)n1

c1ncn(C2CCCO2)n1

2 rings, 10 atoms.

61 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Viramidine suppliers

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Viramidine price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Pharmacological actions

  • Antiviral Agents

Roles

  • antimicrobial agent
  • antiviral agent

Pharmacology

Taribavirin is an orally available prodrug of ribavirin, a synthetic nucleoside analog of ribofuranose with activity against a wide range of viruses, especially the hepatitis C virus and influenza virus. Taribavirin is converted into ribavirin, which is incorporated into viral nucleic acid, thereby inhibiting viral RNA synthesis, inducing viral genome mutations, and inhibiting normal viral replication.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Viramidine is traded under.

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Viramidine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Viramidine, based on the data on this page

What is Viramidine?

Taribavirin is a nucleobase-containing molecular entity.

What is the CAS number of Viramidine?

The CAS registry number of Viramidine is 119567-79-2.

What is the molecular formula and weight of Viramidine?

The molecular formula of Viramidine is C8H13N5O4 and its molar mass is 243.22 g/mol.

What is Viramidine used for?

Known uses and roles of Viramidine include antimicrobial agent, antiviral agent and antiviral agents.

Is Viramidine hazardous?

No GHS hazard classification for Viramidine is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Viramidine?

Viramidine is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Viramidine?

Post a free request on CompoundList and suppliers of Viramidine will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Viramidine?

Suppliers quote Viramidine on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Viramidine

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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