oseltamivir and its Impurities

An active metabolite of Oseltamivir, which an antiviral medication sold under the brand name of Tamiflu. It is used to treat and prevent influenza A and influenza B. It is a competitive inhibitor of influenza´s neuraminidase enzyme. Reference standards of Oseltamivir API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 20 results for oseltamivir Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 15 0521012

Ethyl (1S,5R,6S)-5-(sec-butoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate

Ethyl (1S,5R,6S)-5-(sec-butoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate

  • Catalogue No.:PA 15 0521012

  • CAS :

    NA

  • Molecular Formula : C13H20O4

  • Molecular Weight : 240.3

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521013

Ethyl (3R,4S,5R)-5-azido-4-hydroxy-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

Ethyl (3R,4S,5R)-5-azido-4-hydroxy-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

  • Catalogue No.:PA 15 0521013

  • CAS :

    204254-98-8

  • Molecular Formula : C14H23N3O4

  • Molecular Weight : 297.36

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521014

Ethyl (3R,4S,5R)-5-azido-4-((methylsulfonyl)oxy)-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

Ethyl (3R,4S,5R)-5-azido-4-((methylsulfonyl)oxy)-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

  • Catalogue No.:PA 15 0521014

  • CAS :

    1216260-26-2

  • Molecular Formula : C15H25N3O6S

  • Molecular Weight : 375.44

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521015

Ethyl (3R,4S,5R)-5-amino-4-((methylsulfonyl)oxy)-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

Ethyl (3R,4S,5R)-5-amino-4-((methylsulfonyl)oxy)-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

  • Catalogue No.:PA 15 0521015

  • CAS :

    312904-17-9

  • Molecular Formula : C15H27NO6S

  • Molecular Weight : 349.44

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521016

(3R,4R)-Methyl 4-Acetamido-3-(pentan-3-yloxy)-5-(((3S,4R,5R,6S)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)amino)cyclohex-1-enecarboxylate

(3R,4R)-Methyl 4-Acetamido-3-(pentan-3-yloxy)-5-(((3S,4R,5R,6S)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)amino)cyclohex-1-enecarboxylate

  • Catalogue No.:PA 15 0521016

  • CAS :

    NA

  • Molecular Formula : C21H36N2O9

  • Molecular Weight : 460.52

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521017

Ethyl (3R,4S,5R)-5-(tert-butyl(nitroso)amino)-4-hydroxy-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

Ethyl (3R,4S,5R)-5-(tert-butyl(nitroso)amino)-4-hydroxy-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

  • Catalogue No.:PA 15 0521017

  • CAS :

    NA

  • Molecular Formula : C18H32N2O5

  • Molecular Weight : 356.46

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521018

Ethyl 5-amino-4-acetamido-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

Ethyl 5-amino-4-acetamido-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

  • Catalogue No.:PA 15 0521018

  • CAS :

    941296-93-1

  • Molecular Formula : C16H28N2O4

  • Molecular Weight : 312.41

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521019

Ethyl (3R,4R,5S)-4-acetamido-5-(diallylamino)-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

Ethyl (3R,4R,5S)-4-acetamido-5-(diallylamino)-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

  • Catalogue No.:PA 15 0521019

  • CAS :

    651324-09-3

  • Molecular Formula : C22H36N2O4

  • Molecular Weight : 392.54

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521020

Ethyl (1R,5S,6R)-5-(pentan-3-yloxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate

Ethyl (1R,5S,6R)-5-(pentan-3-yloxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate

  • Catalogue No.:PA 15 0521020

  • CAS :

    2413185-89-2

  • Molecular Formula : C14H22O4

  • Molecular Weight : 254.33

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521021

Ethyl (3R,4R,5S)-4-acetamido-5-amino-3-hydroxycyclohex-1-ene-1-carboxylate

Ethyl (3R,4R,5S)-4-acetamido-5-amino-3-hydroxycyclohex-1-ene-1-carboxylate

  • Catalogue No.:PA 15 0521021

  • CAS :

    903907-74-4

  • Molecular Formula : C11H18N2O4

  • Molecular Weight : 242.28

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521022

Ethyl (3R,4S,5R)-4-acetamido-5-((methylsulfonyl)oxy)-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

Ethyl (3R,4S,5R)-4-acetamido-5-((methylsulfonyl)oxy)-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

  • Catalogue No.:PA 15 0521022

  • CAS :

    1132659-99-4

  • Molecular Formula : C17H29NO7S

  • Molecular Weight : 391.48

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521023

Ethyl (3R,4S,5R)-3,4,5-tris((methylsulfonyl)oxy)cyclohex-1-ene-1-carboxylate

Ethyl (3R,4S,5R)-3,4,5-tris((methylsulfonyl)oxy)cyclohex-1-ene-1-carboxylate

  • Catalogue No.:PA 15 0521023

  • CAS :

    1132659-94-9

  • Molecular Formula : C12H20O11S3

  • Molecular Weight : 436.46

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521024

Ethyl (1S,5R,6S)-7-(diethoxyphosphoryl)-5-((methylsulfonyl)oxy)-7-azabicyclo[4.1.0]hept-2-ene-3-carboxylate

Ethyl (1S,5R,6S)-7-(diethoxyphosphoryl)-5-((methylsulfonyl)oxy)-7-azabicyclo[4.1.0]hept-2-ene-3-carboxylate

  • Catalogue No.:PA 15 0521024

  • CAS :

    1132659-96-1

  • Molecular Formula : C14H24NO8PS

  • Molecular Weight : 397.38

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521025

Ethyl (3R,4S,5R)-4-((diethoxyphosphoryl)amino)-5-((methylsulfonyl)oxy)-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

Ethyl (3R,4S,5R)-4-((diethoxyphosphoryl)amino)-5-((methylsulfonyl)oxy)-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

  • Catalogue No.:PA 15 0521025

  • CAS :

    1132659-97-2

  • Molecular Formula : C19H36NO9PS

  • Molecular Weight : 485.53

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521026

Methyl (1S,5R,6R)-5-(pentan-3-yloxy)-7-oxabicyclo[4.1.0]hept-2-ene-3-carboxylate

Methyl (1S,5R,6R)-5-(pentan-3-yloxy)-7-oxabicyclo[4.1.0]hept-2-ene-3-carboxylate

  • Catalogue No.:PA 15 0521026

  • CAS :

    1234466-26-2

  • Molecular Formula : C13H20O4

  • Molecular Weight : 240.3

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521027

rel-Ethyl (1R,5S,6R)-5-(1-methylbutoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate

rel-Ethyl (1R,5S,6R)-5-(1-methylbutoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate

  • Catalogue No.:PA 15 0521027

  • CAS :

    2714884-77-0

  • Molecular Formula : C14H22O4

  • Molecular Weight : 254.33

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521028

Ethyl (1S,5R,6S)-5-isopropoxy-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate

Ethyl (1S,5R,6S)-5-isopropoxy-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate

  • Catalogue No.:PA 15 0521028

  • CAS :

    2382442-97-7

  • Molecular Formula : C12H18O4

  • Molecular Weight : 226.27

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521029

Ethyl (3R,4S,5R)-4-acetamido-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate Hydrochloride

Ethyl (3R,4S,5R)-4-acetamido-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate Hydrochloride

  • Catalogue No.:PA 15 0521029

  • CAS :

    NA

  • Molecular Formula : C16H29ClN2O4

  • Molecular Weight : 348.87

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521030

Ethyl (3R,4R,5R)-4-acetamido-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate Hydrochloride

Ethyl (3R,4R,5R)-4-acetamido-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate Hydrochloride

  • Catalogue No.:PA 15 0521030

  • CAS :

    3075239-73-2

  • Molecular Formula : C16H29ClN2O4

  • Molecular Weight : 348.87

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Drug Reference Standards & Impurity Synthesis in India
PA 15 0521031

Ethyl (3S,4R,5S)-4-acetamido-5-(((2S,3R,4R,5R)-2,3,4,5,6-pentahydroxyhexylidene)amino)-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

Ethyl (3S,4R,5S)-4-acetamido-5-(((2S,3R,4R,5R)-2,3,4,5,6-pentahydroxyhexylidene)amino)-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

  • Catalogue No.:PA 15 0521031

  • CAS :

    2413185-91-6

  • Molecular Formula : C22H38N2O9

  • Molecular Weight : 474.55

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