Molekula
Oseltamivir phosphate
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
Oseltamivir phosphate is a synthetic antiviral medication used primarily to treat and prevent influenza (flu) infections by inhibiting neuraminidase, an enzyme crucial for viral replication. This active pharmaceutical ingredient is a key component in oral antiviral therapies, particularly effective against influenza A and B viruses. CAS 204255-11-8, molecular formula C16H31N2O8P, with a molecular weight of 410.4 g/mol. Requires cold storage at -15 to -20 °C and carries a signal word of *Warning* for safety handling. Molekula supplies Oseltamivir phosphate 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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 solid |
| Identification | Conforms to reference |
| Purity | ≥99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | -15 to -20 °C |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90038189 |
| CAS Number | 204255-11-8 |
| IUPAC Name | ethyl (3R,4R,5S)-4-acetamido-5-amino-3-pentan-3-yloxycyclohexene-1-carboxylate;phosphoric acid |
| Molecular Formula | C16H31N2O8P |
| Molecular Weight | 410.4 |
| Exact Mass | 410.1818 |
| SMILES | CCC(CC)O[C@@H]1C=C(C[C@@H]([C@H]1NC(=O)C)N)C(=O)OCC.OP(=O)(O)O |
| InChIKey | PGZUMBJQJWIWGJ-ONAKXNSWSA-N |
| InChI | InChI=1S/C16H28N2O4.H3O4P/c1-5-12(6-2)22-14-9-11(16(20)21-7-3)8-13(17)15(14)18-10(4)19;1-5(2,3)4/h9,12-15H,5-8,17H2,1-4H3,(H,18,19);(H3,1,2,3,4)/t13-,14+,15+;/m0./s1 |
| PubChem CID | 78000 |
| REACH Code | Y110 |
| HTS Code | 2924.29.77.90 |
| Tariff Code | 2924297099 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P305+P351+P338 IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do, continue rinsing
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
- Agucort
- Aseltamivir phosphate
- Ebilfumin (TN)
- Oseltamir Phosphate
- Oseltamivir (as phosphate)
- Oseltamivir phosphata
- Oseltamiviri phosphas
- Ro 64-0796/002
- Tamiflu
- Tamiflu (TN)
Frequently asked questions
What is oseltamivir phosphate used for?
Oseltamivir phosphate is primarily used as an antiviral medication to treat and prevent influenza (flu) types A and B in adults and children.
What is the chemical formula and molecular weight of oseltamivir phosphate?
The chemical formula is **C₁₆H₃₁N₂O₈P**, and the molecular weight is **410.4 g/mol**.
How should oseltamivir phosphate be stored?
Store at **-15 to -20°C** to maintain stability and potency.
What grade or purity is available for oseltamivir phosphate?
Molekula supplies **pharmaceutical-grade oseltamivir phosphate** meeting strict regulatory standards for safety and efficacy.
Can Molekula supply oseltamivir phosphate in bulk quantities?
Yes, we offer bulk supply options for oseltamivir phosphate, subject to availability and regulatory compliance.
What documentation comes with an order of oseltamivir phosphate?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
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.