Ribavirin
A 1-ribosyltriazole that is the 1-ribofuranosyl derivative of 1,2,4-triazole-3-carboxamide. A synthetic guanosine analogue, it is an inhibitor of HCV polymerase and possesses a broad spectrum of activity against DNA and RNA viruses. — ChEBI
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Identity & molecular properties
Source-linked values| CAS number | 36791-04-5 | ChEBI ↗ |
| Molecular formula | C8H12N4O5 | ChEBI ↗ |
| Molar mass | 244.207 g/mol | ChEBI ↗ |
| Monoisotopic mass | 244.08077 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:63580 | ChEBI ↗ |
Cross-source molecular data
PubChem| Molar mass | 244.20 g/mol | PubChem ↗ |
| Exact mass | 244.08076950 Da | PubChem ↗ |
| Computed XLogP | -1.8 | PubChem ↗ |
| Topological polar surface area (Ų) | 144 | PubChem ↗ |
| H-bond donors | 4 | PubChem ↗ |
| H-bond acceptors | 7 | PubChem ↗ |
| Rotatable bonds | 3 | PubChem ↗ |
PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.
Names & structural identifiers
Copy any identifierribavirin1-(beta-D-ribofuranosyl)-1H-1,2,4-triazole-3-carboxamideIWUCXVSUMQZMFG-AFCXAGJDSA-NNC(=O)c1ncn([C@@H]2O[C@H](CO)[C@@H](O)[C@H]2O)n1InChI=1S/C8H12N4O5/c9-6(16)7-10-2-12(11-7)8-5(15)4(14)3(1-13)17-8/h2-5,8,13-15H,1H2,(H2,9,16)/t3-,4-,5-,8-/m1/s1Names & synonyms
Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.
Classification & relationships
ChEBI ontologyRoles recorded in ChEBI
Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.
Mass ↔ amount of substance
Calculated from sourced massUses 244.207 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.
Elemental composition
Theoretical mass fractionsCONHCalculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.
Research & patent references
Selected source associationsSources & record history
Checked 27 Sep 2026Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0
PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.