favipiravir-impurities | Pharmaffiliates

Favipiravir and its Impurities

Favipiravir is a modified pyrazine analog that was initially approved for therapeutic use in resistant cases of influenza.The antiviral targets RNA-dependent RNA polymerase (RdRp) enzymes, which are necessary for the transcription and replication of viral genomes.Not only does favipiravir inhibit replication of influenza A and B, but the drug has shown promise in the treatment of avian influenza, and may be an alternative option for influenza strains that are resistant to neuramidase inhibitors.Favipiravir has been investigated for the treatment of life-threatening pathogens such as Ebola virus, Lassa virus, and now COVID-19. Reference standards of Favipiravir API,and its pharmacopeial, non pharmacopieal impurities, and stable isotopes are listed below.

Displaying 24 results for Favipiravir Impurities
PA 06 1540000

Favipiravir - API

Favipiravir


  • Catalogue No.:PA 06 1540000

  • CAS :

    259793-96-9

  • Molecular Formula : C5H4FN3O2

  • Molecular Weight : 157.1

PA 06 1541000

6-Chloro-3-hydroxypyrazine-2-carboxamide

6-Chloro-3-hydroxypyrazine-2-carboxamide


  • Catalogue No.:PA 06 1541000

  • CAS :

    259793-90-3

  • Molecular Formula : C5H4ClN3O2

  • Molecular Weight : 173.56

PA 06 1541001

6-Fluoro-3,5-dihydroxypyrazine-2-carboxamide

6-Fluoro-3,5-dihydroxypyrazine-2-carboxamide


  • Catalogue No.:PA 06 1541001

  • CAS :

    NA

  • Molecular Formula : C5H4FN3O3

  • Molecular Weight : 173.1

PA 06 1541002

3-Oxo-3,4-dihydropyrazine-2-carboxamide

3-Oxo-3,4-dihydropyrazine-2-carboxamide


  • Catalogue No.:PA 06 1541002

  • CAS :

    55321-99-8

  • Molecular Formula : C5H5N3O2

  • Molecular Weight : 139.11

PA 06 1541003

6-Bromo-3-hydroxypyrazine-2-carboxamide

6-Bromo-3-hydroxypyrazine-2-carboxamide


  • Catalogue No.:PA 06 1541003

  • CAS :

    259793-88-9

  • Molecular Formula : C5H4BrN3O2

  • Molecular Weight : 218.01

PA 06 1541004

6-Chloropyrazine-2-carbonitrile

6-Chloropyrazine-2-carbonitrile


  • Catalogue No.:PA 06 1541004

  • CAS :

    6863-74-7

  • Molecular Formula : C5H2ClN3

  • Molecular Weight : 139.54

PA 06 1541005

6-Fluoropyrazine-2-carbonitrile

6-Fluoropyrazine-2-carbonitrile


  • Catalogue No.:PA 06 1541005

  • CAS :

    356783-46-5

  • Molecular Formula : C5H2FN3

  • Molecular Weight : 123.09

PA 06 1541006

3-Chloro-6-fluoropyrazine-2-carbonitrile

3-Chloro-6-fluoropyrazine-2-carbonitrile


  • Catalogue No.:PA 06 1541006

  • CAS :

    356783-49-8

  • Molecular Formula : C5HClFN3

  • Molecular Weight : 157.53

PA 06 1541007

6-Chloro-3-fluoropyrazine-2-carbonitrile

6-Chloro-3-fluoropyrazine-2-carbonitrile


  • Catalogue No.:PA 06 1541007

  • CAS :

    NA

  • Molecular Formula : C5HClFN3

  • Molecular Weight : 157.53

PA 06 1541008

6-Fluoro-3-hydroxypyrazine-2-carboxylic acid

6-Fluoro-3-hydroxypyrazine-2-carboxylic acid


  • Catalogue No.:PA 06 1541008

  • CAS :

    1079990-21-8

  • Molecular Formula : C5H3FN2O3

  • Molecular Weight : 158.09

PA 06 1541009

5-Fluoro-3-hydroxypyrazine-2-carbonitrile

5-Fluoro-3-hydroxypyrazine-2-carbonitrile


  • Catalogue No.:PA 06 1541009

  • CAS :

    NA

  • Molecular Formula : C5H2FN3O

  • Molecular Weight : 139.09

PA 06 1541010

3-Bromo-5-chloropyrazine-2-carbonitrile

3-Bromo-5-chloropyrazine-2-carbonitrile


  • Catalogue No.:PA 06 1541010

  • CAS :

    440124-25-4

  • Molecular Formula : C5HBrClN3

  • Molecular Weight : 218.44

PA 06 1541011

3,6-Difluoropyrazine-2-carboxamide

3,6-Difluoropyrazine-2-carboxamide


  • Catalogue No.:PA 06 1541011

  • CAS :

    356783-29-4

  • Molecular Formula : C5H3F2N3O

  • Molecular Weight : 159.1

PA 06 1541012

3-Carbamoyl-5-fluoro-2-hydroxypyrazine 1,4-dioxide

3-Carbamoyl-5-fluoro-2-hydroxypyrazine 1,4-dioxide


  • Catalogue No.:PA 06 1541012

  • CAS :

    NA

  • Molecular Formula : C5H4FN3O4

  • Molecular Weight : 189.1

PA 06 1541013

2-Carbamoyl-6-fluoro-3-hydroxypyrazine 1-oxide

2-Carbamoyl-6-fluoro-3-hydroxypyrazine 1-oxide


  • Catalogue No.:PA 06 1541013

  • CAS :

    NA

  • Molecular Formula : C5H4FN3O3

  • Molecular Weight : 173.1

PA 06 1541014

3,6-Dichloropyrazine-2-carbonitrile

3,6-Dichloropyrazine-2-carbonitrile


  • Catalogue No.:PA 06 1541014

  • CAS :

    356783-16-9

  • Molecular Formula : C5HCl2N3

  • Molecular Weight : 173.98

PA 06 1541015

3,6-Difluoropyrazine-2-carbonitrile

3,6-Difluoropyrazine-2-carbonitrile


  • Catalogue No.:PA 06 1541015

  • CAS :

    356783-28-3

  • Molecular Formula : C5HF2N3

  • Molecular Weight : 141.08

PA 06 1541016

6-Fluoro-3-hydroxypyrazine-2-carbonitrile

6-Fluoro-3-hydroxypyrazine-2-carbonitrile


  • Catalogue No.:PA 06 1541016

  • CAS :

    356783-31-8

  • Molecular Formula : C5H2FN3O

  • Molecular Weight : 139.09

PA 06 1541017

3,6-Dihydroxypyrazine-2-carboxamide

3,6-Dihydroxypyrazine-2-carboxamide


  • Catalogue No.:PA 06 1541017

  • CAS :

    NA

  • Molecular Formula : C5H5N3O3

  • Molecular Weight : 155.03

PA 06 1541018

3-Hydroxy-6-methoxypyrazine-2-carboxamide

3-Hydroxy-6-methoxypyrazine-2-carboxamide


  • Catalogue No.:PA 06 1541018

  • CAS :

    NA

  • Molecular Formula : C6H7N3O3

  • Molecular Weight : 169.14

PA 06 1541019

6-Ethoxy-3-hydroxypyrazine-2-carboxamide

6-Ethoxy-3-hydroxypyrazine-2-carboxamide


  • Catalogue No.:PA 06 1541019

  • CAS :

    NA

  • Molecular Formula : C7H9N3O3

  • Molecular Weight : 183.17

PA STI 088840

Favipiravir D4

Favipiravir D4


  • Catalogue No.:PA STI 088840

  • CAS :

    NA

  • Molecular Formula : C5D4FN3O2

  • Molecular Weight : 161.13

PA IPRS 56 20

Favipiravir (IPRS/56/20) - from IPC

Favipiravir (IPRS/56/20) - from IPC


  • Catalogue No.:PA IPRS 56 20

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 06 1541020

3-Carbamoyl-5-fluoro-2-hydroxypyrazine 1-oxide

3-Carbamoyl-5-fluoro-2-hydroxypyrazine 1-oxide


  • Catalogue No.:PA 06 1541020

  • CAS :

    NA

  • Molecular Formula : C5H4FN3O3

  • Molecular Weight : 173.1