Oseltamivir Impurity 338
- CAS1238305-24-2
- CatalogueRS-O001021
- FormulaC4H6N2O3
- MW130.1
On this page
Product identification
| Product name | Oseltamivir Impurity 338 |
|---|---|
| Catalogue No. | RS-O001021 |
| CAS No. | 1238305-24-2 |
| Molecular formula | C4H6N2O3 |
| Molecular weight | 130.1 |
| Availability | In stock— dispatched in about 1–2 weeks |
| Standard type | Impurity Reference Standards |
| Drug substance | Oseltamivir |
| Also known as | (Z)-N-(2-nitrovinyl)acetaMide |
| Intended use | For laboratory and research use only. Not for human or veterinary use. |
What is stated on the certificate
Content and purity are assigned per lot and stated on the certificate of analysis issued for the batch you receive — they are not a catalogue-level figure. The certificate records the tests performed, the specification applied and the result obtained for that lot.
| Field | Basis |
|---|---|
| Identity | Spectroscopic and chromatographic methods appropriate to the material |
| Purity | Chromatographic purity, area normalisation unless stated otherwise |
| Assay / content | Mass balance, corrected for the stated volatiles and residue |
| Catalogue and batch numbers | RS-O001021 / batch number on the certificate |
| Retest date | Printed on the certificate for the lot supplied |
Frequently asked
What documentation is supplied with this lot?
Is the assigned value given on an “as is” basis?
How should this material be stored?
Do you supply pack sizes other than those listed?
Finding this standard
Buyers reach this compound by CAS number, by catalogue number, through the drug substance it belongs to, or through the type of standard it is. Those routes all start here:
- Other impurities of Oseltamivir
- Impurity Reference Standards of this kind
- Documents for this item (COA, SDS)
- Certificate of analysis for RS-O001021
- Request a quotation for RS-O001021
Searching another way? Send the structure, a SMILES string or the pharmacopoeial name — a CAS number is not required for a non-compendial impurity. Write to sales@rssechem.com.
Other standards of Oseltamivir
All 79 further standards are listed here — every link is in the page, not loaded later.
-
Oseltamivir Impurity 310
IN STOCK -
Oseltamivir Impurity 397
BACK ORDER -
Oseltamivir EP Impurity F
IN STOCK -
Oseltamivir Impurity 382
CUSTOM SYNTHESIS -
Oseltamivir Impurity 35
IN STOCK -
Oseltamivir EP Impurity D
IN STOCK -
Oseltamivir EP Impurity A
IN STOCK -
Ethyl 3,4-O-isopropylideneshikimate
IN STOCK -
Oseltamivir EP Impurity C
IN STOCK -
Oseltamivir Impurity 17
IN STOCK -
Oseltamivir Impurity 29
IN STOCK -
Oseltamivir Impurity 381
IN STOCK -
Oseltamivir Impurity 303
IN STOCK -
Oseltamivir Impurity 304
IN STOCK -
Oseltamivir EP Impurity E
IN STOCK -
Oseltamivir Impurity 26
IN STOCK -
Oseltamivir EP Impurity B
IN STOCK -
Oseltamivir Impurity 82
IN STOCK -
Oseltamivir Impurity 342
IN STOCK -
Oseltamivir Impurity 380
IN STOCK -
Oseltamivir EP Impurity H
IN STOCK -
Oseltamivir Impurity 48
IN STOCK -
Oseltamivir Impurity 122
IN STOCK -
Oseltamivir EP Impurity G
IN STOCK -
Oseltamivir Impurity 335
CUSTOM SYNTHESIS -
Oseltamivir Impurity 62
IN STOCK -
Oseltamivir EP Impurity B
IN STOCK -
Oseltamivir Impurity 106
CUSTOM SYNTHESIS -
Oseltamivir Impurity 132
BACK ORDER -
Oseltamivir Impurity 336
CUSTOM SYNTHESIS -
Oseltamivir Impurity 337
IN STOCK -
Oseltamivir Impurity 346
IN STOCK -
Oseltamivir Impurity 302
CUSTOM SYNTHESIS -
Oseltamivir Impurity 339
IN STOCK -
Oseltamivir Impurity 60
IN STOCK -
Oseltamivir Impurity 171
IN STOCK -
Oseltamivir Impurity 334
IN STOCK -
Oseltamivir Impurity 290
CUSTOM SYNTHESIS -
Oseltamivir Impurity 66
IN STOCK -
Oseltamivir Impurity 344
IN STOCK -
Oseltamivir Impurity 109
BACK ORDER -
Oseltamivir Impurity 340
CUSTOM SYNTHESIS -
Oseltamivir Impurity 274
IN STOCK -
Oseltamivir Impurity 266
IN STOCK -
Oseltamivir Impurity 107
IN STOCK -
Oseltamivir Impurity 176
IN STOCK -
Oseltamivir Impurity 133
CUSTOM SYNTHESIS -
Oseltamivir Impurity 154
IN STOCK -
Oseltamivir Impurity 341
IN STOCK -
Oseltamivir Impurity 305
IN STOCK -
Oseltamivir Impurity 142(Hydrochloride)
BACK ORDER -
Oseltamivir Impurity K
CUSTOM SYNTHESIS -
Oseltamivir Impurity 343
IN STOCK -
Oseltamivir Impurity 104
IN STOCK -
Oseltamivir Impurity 49 (651324-05-9)
CUSTOM SYNTHESIS -
ent-Oseltamivir Phosphate
BACK ORDER -
Oseltamivir Citric Acid Dehydrate
CUSTOM SYNTHESIS -
(3S,4R,5R)-Oseltamivir hydrochloride
IN STOCK -
Oseltamivir-d5 Hydrochloride
CUSTOM SYNTHESIS -
Oseltamivir N-D-Glucitol
BACK ORDER -
Oseltamivir
IN STOCK -
Oseltamivir Impurity 275
IN STOCK -
Oseltamivir Hydrochloride
IN STOCK
Pharmacopoeial names (EP, USP, BP, JP) are used for identification purposes only and do not imply endorsement by those bodies. This product is supplied for laboratory and research use only — not for human or veterinary use.


















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![Chemical structure of Ethyl (1R,5R,6R)-7-(tert-butyl)-5-(pentan-3-yloxy)-7-azabicyclo[4.1.0]hept-3-ene-3-carboxylate](/structures/w4/UXYQFYXXRVMJMV-OJEBHDCCSA-N.webp?v=7)


















![Chemical structure of Methyl (1S,5R,6S)-5-(pentan-3-yloxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate](/structures/w4/BWNDCLRNSUNXGU-QJPTWQEYSA-N.webp?v=7)









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![Chemical structure of ethyl (1S,5R,6R)-5-hydroxy-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate](/structures/w4/UAFHUMBBORXHIV-GJMOJQLCSA-N.webp?v=7)










