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Pharmacopeial Impurities (EP / USP / BP)Reference StandardAvailable on request

Oseltamivir EP Impurity E

Synonyms: Oseltamivir Acid Methyl Ester · Oseltamivir Phosphate - Impurity E · (3R,4R,5S)-Methyl 4-acetamido-5-amino-3-(pentan-3-yloxy)cyclohex-1-enecarboxylate · Methyl (3R,4R,5S)-4-acetamido-5-amino-3-(1-ethylpropoxy)cyclohex-1-ene-1-carboxylate

CAS No.208720-71-2
FormulaC15H26N2O4
Mol. weight298.38
Catalogue No.VQ-027051
PurityReference Standard
HSN38229090

Oseltamivir EP Impurity E (CAS 208720-71-2) – Oseltamivir impurity standard. C15H26N2O4, MW 298.38. Buy from Vaqora Chemicals with COA and worldwide shipping.

Pack sizesPrice on quotation · bulk available
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25 mg
50 mg
100 mg
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Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing

About Oseltamivir EP Impurity E

Oseltamivir EP Impurity E (CAS 208720-71-2) is a pharmacopeial impurity of Oseltamivir offered by Vaqora Chemicals. Its molecular formula is C15H26N2O4 and its molecular weight is 298.38 g/mol. The IUPAC name is methyl (3R,4R,5S)-4-acetamido-5-amino-3-pentan-3-yloxycyclohexene-1-carboxylate. It is also known as Oseltamivir Acid Methyl Ester or Oseltamivir Phosphate - Impurity E.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Good laboratory practice and suitable PPE are recommended during handling.

As a characterised impurity of Oseltamivir, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

We offer Oseltamivir EP Impurity E in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Industries

Related to Oseltamivir

View every impurity, metabolite and intermediate we list for Oseltamivir.

Oseltamivir impurities

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Specifications & identifiers

Chemical identifiers
Product nameOseltamivir EP Impurity E
Catalogue No.VQ-027051
CAS Number208720-71-2
IUPAC namemethyl (3R,4R,5S)-4-acetamido-5-amino-3-pentan-3-yloxycyclohexene-1-carboxylate
Molecular formulaC15H26N2O4
Molecular weight298.38 g/mol
Exact mass298.1893
GradeReference Standard
HSN code38229090
InChIKeyHQFJHRGEFIDLDI-BFHYXJOUSA-N
SMILESCCC(CC)O[C@@H]1C=C(C[C@@H]([C@H]1NC(=O)C)N)C(=O)OC
PubChem CID11808666
Physical properties
Physical formSolid
LogP (XLogP3)0.7
H-bond donors / acceptors2 / 5
TPSA90.7 Ų
SynonymsOseltamivir Acid Methyl Ester, Oseltamivir Phosphate - Impurity E, (3R,4R,5S)-Methyl 4-acetamido-5-amino-3-(pentan-3-yloxy)cyclohex-1-enecarboxylate, Methyl (3R,4R,5S)-4-acetamido-5-amino-3-(1-ethylpropoxy)cyclohex-1-ene-1-carboxylate, methyl (3R,4R,5S)-5-amino-4-acetamido-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate, Methyl (3R,4R,5S)-4-(acetylamino) -5-amino-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxyate, methyl (3R,4R,5S)-4-acetamido-5-amino-3-(1-ethylpropoxy)cyclohexene-1-carboxylate, methyl (3R,4R,5S)-4-acetamido-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

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Frequently asked questions

What is the CAS number of Oseltamivir EP Impurity E?

The CAS Registry Number of Oseltamivir EP Impurity E is 208720-71-2. It is also known as Oseltamivir Acid Methyl Ester, Oseltamivir Phosphate - Impurity E, (3R,4R,5S)-Methyl 4-acetamido-5-amino-3-(pentan-3-yloxy)cyclohex-1-enecarboxylate.

What is the molecular formula and molecular weight of Oseltamivir EP Impurity E?

Oseltamivir EP Impurity E has the molecular formula C15H26N2O4 and a molecular weight of 298.38 g/mol. Its IUPAC name is methyl (3R,4R,5S)-4-acetamido-5-amino-3-pentan-3-yloxycyclohexene-1-carboxylate.

What is Oseltamivir EP Impurity E used for?

Oseltamivir EP Impurity E is supplied as a characterised reference material related to Oseltamivir. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Oseltamivir EP Impurity E can I order?

We supply Oseltamivir EP Impurity E in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Oseltamivir EP Impurity E?

Yes. Every lot of Oseltamivir EP Impurity E is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Oseltamivir EP Impurity E be shipped internationally?

Yes. We export Oseltamivir EP Impurity E worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.

Enquire about Oseltamivir EP Impurity E

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Why buyers choose Vaqora

  • Batch-traceable lots with COA
  • R&D packs to multi-tonne supply
  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
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Related products

Reference Standard
5-Azido Oseltamivir chemical structure
5-Azido Oseltamivir
CAS
204255-06-1
Formula
C16H26N4O4
MW
338.4 g/mol
VQ-027053

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