Molekula
Ribavirin
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Ribavirin is a synthetic nucleoside analog used primarily as an antiviral agent, particularly in the treatment of hepatitis C and respiratory syncytial virus (RSV) infections. It functions by inhibiting viral RNA synthesis. Available with a molecular formula of C8H12N4O5, a molecular weight of 244.20 g/mol, and a CAS number of 36791-04-5, it must be stored at 2 to 8 °C. The substance is classified as Danger. Molekula supplies Ribavirin from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £46.50 per pack ex VAT · £55.80 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Specific rotation | -33.5 to -37.0 |
| Heavy metals | ≤0.001% |
| pH | 4.0 - 6.5 |
| Loss on Drying | ≤0.5% |
| Assay | 98.5 - 101.5% |
| Residue on Ignition | ≤0.1% |
| Chromotograhic Purity | Each impurities surface area <0.25% of the general peak area. The total impurities surface area <1.0% of the general peak area |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless |
| Odour | Odorless |
| Melting Point | 166-168 °C (aq ethanol); 174-176 °C (ethanol). |
| Solubility (other solvents) | Slightly soluble in alcohol |
| log P (octanol/water) | -1.85 |
Source: PubChem CID 37542 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 18793733 |
| CAS Number | 36791-04-5 |
| IUPAC Name | 1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,2,4-triazole-3-carboxamide |
| Molecular Formula | C8H12N4O5 |
| Molecular Weight | 244.20 |
| Exact Mass | 244.0808 |
| SMILES | C1=NC(=NN1[C@H]2[C@@H]([C@@H]([C@H](O2)CO)O)O)C(=O)N |
| InChIKey | IWUCXVSUMQZMFG-AFCXAGJDSA-N |
| InChI | InChI=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/s1 |
| PubChem CID | 37542 |
| REACH Code | Y110 |
| HTS Code | 2934.99.30.00 |
| Tariff Code | 2934999090 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H315 Causes skin irritation
- H341 Suspected of causing genetic defects
- H360 May damage fertility or the unborn child
- H373 May cause damage to organs through prolonged or repeated exposure
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Copegus
- Rebetol
- Ribamidil
- Ribasphere
- Ribavirine
- RTCA
- Tribavirin
- Vilona
- Viramid
- Virazole
Frequently asked questions
What is Ribavirin used for?
Ribavirin is primarily used in the treatment of viral infections, including hepatitis C and respiratory syncytial virus (RSV), often in combination with other antiviral agents.
What is the chemical formula and molecular weight of Ribavirin?
The chemical formula of Ribavirin is C8H12N4O5, and its molecular weight is 244.20 g/mol.
How should Ribavirin be stored?
Ribavirin should be stored at 2 to 8 °C, protected from light and moisture.
What grade of Ribavirin does Molekula supply?
Molekula supplies Ribavirin in pharmaceutical grade, suitable for research and clinical use.
Can Molekula supply Ribavirin in bulk quantities?
Yes, Molekula can supply Ribavirin in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a Ribavirin order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation is available upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.