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Home/Compounds/Pharmaceutical Intermediate/5-Azido Oseltamivir
C16H26N4O4
338.4 g/mol
Pharmaceutical Intermediate

Ethyl (3R,4R,5S)-4-acetamido-5-azido-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylate

CAS204255-06-1
Category
Pharmaceutical Intermediate
Compound Class
Amide
Primary Use
Pharmaceutical Intermediate

This compound is a pharmaceutical intermediate specifically used in the synthesis of oseltamivir, an antiviral medication for influenza. Its structure includes an ester, amide, and ether functional groups, contributing to its role in manufacturing processes.

oseltamivir intermediate

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Customs Tariff Classification

The international HS code for Ethyl (3R,4R,5S)-4-acetamido-5-azido-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylate (CAS 204255-06-1) is 2929.90.

HS code (international, 6-digit)

2929.90

EU CN code (8-digit)

2929 90 90

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
IUPAC Name

ethyl (3R,4R,5S)-4-acetamido-5-azido-3-pentan-3-yloxycyclohexene-1-carboxylate

InChIKey

MPTCBJSPQVJIPZ-RRFJBIMHSA-N

SMILES

CCC(CC)O[C@@H]1C=C(C[C@@H]([C@H]1NC(=O)C)N=[N+]=[N-])C(=O)OCC

Synonyms (17)
  • 5-Azido Oseltamivir

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