edaravone and its Impurities

Edaravone is used to help people recover from stroke in Japan, and is used to treat ALS in the US and Japan. It is sold as under the brand names Radicava. Reference standards of Edaravone API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below

Displaying 50 results for edaravone Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 32 06000

Edaravone

Edaravone


  • Catalogue No.:PA 32 06000

  • CAS :

    89-25-8

  • Molecular Formula : C10H10N2O

  • Molecular Weight : 174.2

Drug Reference Standards & Impurity Synthesis in India
PA 32 06510

4,4'-(Ethane-1,1-diyl)bis(3-methyl-1-phenyl-1H-pyrazol-5(4H)-one)

4,4'-(Ethane-1,1-diyl)bis(3-methyl-1-phenyl-1H-pyrazol-5(4H)-one)


  • Catalogue No.:PA 32 06510

  • CAS :

    82772-85-8

  • Molecular Formula : C22H22N4O2

  • Molecular Weight : 374.44

Drug Reference Standards & Impurity Synthesis in India
PA 32 06520

4,4'-(Ethane-1,1-diyl)bis(3-methyl-1-phenyl-4,5-dihydro-1H-pyrazol-5-ol)

4,4'-(Ethane-1,1-diyl)bis(3-methyl-1-phenyl-4,5-dihydro-1H-pyrazol-5-ol)


  • Catalogue No.:PA 32 06520

  • CAS :

    NA

  • Molecular Formula : C22H26N4O2

  • Molecular Weight : 378.47

Drug Reference Standards & Impurity Synthesis in India
PA 32 06530

Bispyrazolone

Bispyrazolone


  • Catalogue No.:PA 32 06530

  • CAS :

    7477-67-0

  • Molecular Formula : C20H18N4O2

  • Molecular Weight : 346.38

Drug Reference Standards & Impurity Synthesis in India
PA 32 06540

3,3'-Dimethyl-1,1'-diphenyl[4,4'-bi-1H-pyrazole]-5,5'-diol

3,3'-Dimethyl-1,1'-diphenyl[4,4'-bi-1H-pyrazole]-5,5'-diol


  • Catalogue No.:PA 32 06540

  • CAS :

    177415-76-8

  • Molecular Formula : C20H18N4O2

  • Molecular Weight : 346.38

Drug Reference Standards & Impurity Synthesis in India
PA 32 06550

1,2-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one

1,2-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one


  • Catalogue No.:PA 32 06550

  • CAS :

    19735-89-8

  • Molecular Formula : C10H10N2O

  • Molecular Weight : 174.2

Drug Reference Standards & Impurity Synthesis in India
PA 32 06560

3-Methyl-1-phenyl-4,5-dihydro-1H-pyrazole-4,5-diol

3-Methyl-1-phenyl-4,5-dihydro-1H-pyrazole-4,5-diol


  • Catalogue No.:PA 32 06560

  • CAS :

    NA

  • Molecular Formula : C10H12N2O2

  • Molecular Weight : 192.21

Drug Reference Standards & Impurity Synthesis in India
PA 32 06570

Edaravone N-Oxide

Edaravone N-Oxide


  • Catalogue No.:PA 32 06570

  • CAS :

    152494-76-3

  • Molecular Formula : C10H10N2O2

  • Molecular Weight : 190.2

Drug Reference Standards & Impurity Synthesis in India
PA 32 06580

2,4-Dihydro-4,4-bis(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)-5-methyl-2-phenyl-3H-pyrazol-3-one;

2,4-Dihydro-4,4-bis(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)-5-methyl-2-phenyl-3H-pyrazol-3-one;


  • Catalogue No.:PA 32 06580

  • CAS :

    124009-63-8

  • Molecular Formula : C30H26N6O3

  • Molecular Weight : 518.58

Drug Reference Standards & Impurity Synthesis in India
PA 32 06590

5-Ethoxy-3-methyl-1-phenyl-1H-pyrazole

5-Ethoxy-3-methyl-1-phenyl-1H-pyrazole


  • Catalogue No.:PA 32 06590

  • CAS :

    1016-41-7

  • Molecular Formula : C12H14N2O

  • Molecular Weight : 202.26

Drug Reference Standards & Impurity Synthesis in India
PA 32 06640

(Z)-3',5-Dimethyl-3,5'-dioxo-1',2-diphenyl-1',2,3,5'-tetrahydro-[4,4'-bipyrazolylidene] 1-Oxide

(Z)-3',5-Dimethyl-3,5'-dioxo-1',2-diphenyl-1',2,3,5'-tetrahydro-[4,4'-bipyrazolylidene] 1-Oxide


  • Catalogue No.:PA 32 06640

  • CAS :

    NA

  • Molecular Formula : C20H16N4O3

  • Molecular Weight : 360.37

Drug Reference Standards & Impurity Synthesis in India
PA 32 06650

3-Oxo-N'-phenylbutanehydrazide

3-Oxo-N'-phenylbutanehydrazide


  • Catalogue No.:PA 32 06650

  • CAS :

    710307-89-4

  • Molecular Formula : C10H12N2O2

  • Molecular Weight : 192.22

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061000

5,5"-dihydroxy-3,3",5'-trimethyl-1,1",2'-triphenyl-4,4",5,5"-tetrahydro-1H,1"H-[4,4':4',4"-terpyrazol]-3'(2'H)-one

5,5"-dihydroxy-3,3",5'-trimethyl-1,1",2'-triphenyl-4,4",5,5"-tetrahydro-1H,1"H-[4,4':4',4"-terpyrazol]-3'(2'H)-one


  • Catalogue No.:PA 32 0061000

  • CAS :

    NA

  • Molecular Formula : C30H30N6O3

  • Molecular Weight : 522.61

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061001

4-Ethyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one

4-Ethyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one


  • Catalogue No.:PA 32 0061001

  • CAS :

    22717-41-5

  • Molecular Formula : C12H14N2O

  • Molecular Weight : 202.26

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061002

5-(Hydroxymethyl)-2-phenyl-2,4-dihydro-3H-pyrazol-3-one

5-(Hydroxymethyl)-2-phenyl-2,4-dihydro-3H-pyrazol-3-one


  • Catalogue No.:PA 32 0061002

  • CAS :

    122395-42-0

  • Molecular Formula : C10H10N2O2

  • Molecular Weight : 190.2

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061003

4-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylic Acid

4-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylic Acid


  • Catalogue No.:PA 32 0061003

  • CAS :

    99449-68-0

  • Molecular Formula : C11H10N2O3

  • Molecular Weight : 218.21

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061004

(E)-3-Methyl-1-phenyl-4-(1-(1-phenylhydrazinyl)buta-1,3-dien-2-yl)-1H-pyrazol-5-ol

(E)-3-Methyl-1-phenyl-4-(1-(1-phenylhydrazinyl)buta-1,3-dien-2-yl)-1H-pyrazol-5-ol


  • Catalogue No.:PA 32 0061004

  • CAS :

    NA

  • Molecular Formula : C20H20N4O

  • Molecular Weight : 332.41

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061005

5-Hydroxy-3,5',5"-trimethyl-1,2',2"-triphenyl-2",4,4",5-tetrahydro-1H,3"H-[4,4':4',4"-terpyrazole]-3',3"(2'H)-dione

5-Hydroxy-3,5',5"-trimethyl-1,2',2"-triphenyl-2",4,4",5-tetrahydro-1H,3"H-[4,4':4',4"-terpyrazole]-3',3"(2'H)-dione


  • Catalogue No.:PA 32 0061005

  • CAS :

    NA

  • Molecular Formula : C30H28N6O3

  • Molecular Weight : 520.59

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061006

4-(2-Diazenyl-2-oxoethyl)-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one

4-(2-Diazenyl-2-oxoethyl)-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one


  • Catalogue No.:PA 32 0061006

  • CAS :

    NA

  • Molecular Formula : C12H12N4O2

  • Molecular Weight : 244.25

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061007

5-Methyl-2-phenyl-2,4-dihydro-3H,3'H-[4,4'-bipyrazole]-3,3'-dione

5-Methyl-2-phenyl-2,4-dihydro-3H,3'H-[4,4'-bipyrazole]-3,3'-dione


  • Catalogue No.:PA 32 0061007

  • CAS :

    NA

  • Molecular Formula : C13H10N4O2

  • Molecular Weight : 254.25

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061008

5'-(Hydroxymethyl)-4,5-dimethyl-2,2'-diphenyl-2,2',4,4'-tetrahydro-3H,3'H-[4,4'-bipyrazole]-3,3'-dione

5'-(Hydroxymethyl)-4,5-dimethyl-2,2'-diphenyl-2,2',4,4'-tetrahydro-3H,3'H-[4,4'-bipyrazole]-3,3'-dione


  • Catalogue No.:PA 32 0061008

  • CAS :

    NA

  • Molecular Formula : C21H20N4O3

  • Molecular Weight : 376.42

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061009

3'-(Hydroxymethyl)-3"-methyl-5,5',5"-trioxo-1,1',1"-triphenyl-1',4,4",5,5',5"-hexahydro-1H,1"H-[4,4':4',4"-terpyrazole]-3-carboxylic Acid

3'-(Hydroxymethyl)-3"-methyl-5,5',5"-trioxo-1,1',1"-triphenyl-1',4,4",5,5',5"-hexahydro-1H,1"H-[4,4':4',4"-terpyrazole]-3-carboxylic Acid


  • Catalogue No.:PA 32 0061009

  • CAS :

    NA

  • Molecular Formula : C30H24N6O6

  • Molecular Weight : 564.56

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061010

5-(Hydroxymethyl)-5',5"-dimethyl-2,2',2"-triphenyl-2,2",4,4"-tetrahydro-3H,3"H-[4,4':4',4"-terpyrazole]-3,3',3"(2'H)-trione

5-(Hydroxymethyl)-5',5"-dimethyl-2,2',2"-triphenyl-2,2",4,4"-tetrahydro-3H,3"H-[4,4':4',4"-terpyrazole]-3,3',3"(2'H)-trione


  • Catalogue No.:PA 32 0061010

  • CAS :

    NA

  • Molecular Formula : C30H26N6O4

  • Molecular Weight : 534.58

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061013

(E)-2-Oxo-3-(2-phenylhydrazono)butanoic Acid

(E)-2-Oxo-3-(2-phenylhydrazono)butanoic Acid


  • Catalogue No.:PA 32 0061013

  • CAS :

    1086213-77-5

  • Molecular Formula : C10H10N2O3

  • Molecular Weight : 206.2

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061011

2-(3-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)-2-sulfopropanoic Acid

2-(3-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)-2-sulfopropanoic Acid


  • Catalogue No.:PA 32 0061011

  • CAS :

    1357477-99-6

  • Molecular Formula : C13H14N2O6S

  • Molecular Weight : 326.32

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061012

2-(3-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-2-sulfonic Acid

2-(3-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-2-sulfonic Acid


  • Catalogue No.:PA 32 0061012

  • CAS :

    1323485-71-7

  • Molecular Formula : C13H16N2O4S

  • Molecular Weight : 296.34

Drug Reference Standards & Impurity Synthesis in India
PA STI 088717

Edaravone D5

Edaravone D5


  • Catalogue No.:PA STI 088717

  • CAS :

    1228765-67-0

  • Molecular Formula : C10H5D5N2O

  • Molecular Weight : 179.23

Drug Reference Standards & Impurity Synthesis in India
PAI 32 006001

(Z)-5,5'-Dimethyl-2,2'-diphenyl-[4,4'-bipyrazolylidene]-3,3'(2H,2'H)-dione

(Z)-5,5'-Dimethyl-2,2'-diphenyl-[4,4'-bipyrazolylidene]-3,3'(2H,2'H)-dione


  • Catalogue No.:PAI 32 006001

  • CAS :

    1388851-26-0

  • Molecular Formula : C20H16N4O2

  • Molecular Weight : 344.37

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061014

Edaravone Trimer Impurity

Edaravone Trimer Impurity


  • Catalogue No.:PA 32 0061014

  • CAS :

    68195-63-1

  • Molecular Formula : C30H26N6O3

  • Molecular Weight : 518.58

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061018

1-Hydroxy-2-(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-2-sulfonic acid, Sodium Salt

1-Hydroxy-2-(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-2-sulfonic acid, Sodium Salt


  • Catalogue No.:PA 32 0061018

  • CAS :

    1322767-62-3

  • Molecular Formula : C13H16N2NaO5S

  • Molecular Weight : 335.33

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061019

5'-Ethoxy-3,3'-dimethyl-1,1'-diphenyl-1H,1'H-[4,4'-bipyrazol]-5-ol

5'-Ethoxy-3,3'-dimethyl-1,1'-diphenyl-1H,1'H-[4,4'-bipyrazol]-5-ol


  • Catalogue No.:PA 32 0061019

  • CAS :

    NA

  • Molecular Formula : C22H22N4O2

  • Molecular Weight : 374.44

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061017

Ethyl (E)-3-(2-phenylhydrazono)butanoate

Ethyl (E)-3-(2-phenylhydrazono)butanoate


  • Catalogue No.:PA 32 0061017

  • CAS :

    2061958-41-4

  • Molecular Formula : C12H16N2O2

  • Molecular Weight : 220.27

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061016

1-Hydroxy-2-(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-2-sulfonic Acid

1-Hydroxy-2-(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-2-sulfonic Acid


  • Catalogue No.:PA 32 0061016

  • CAS :

    1242471-40-4

  • Molecular Formula : C13H16N2O5S

  • Molecular Weight : 312.34

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061015

Sodium 2-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)propane-2-sulfonate

Sodium 2-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)propane-2-sulfonate


  • Catalogue No.:PA 32 0061015

  • CAS :

    NA

  • Molecular Formula : C13H15N2NaO4S

  • Molecular Weight : 318.32

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061020

Edaravone Sulfate Triethylamine Salt

Edaravone Sulfate Triethylamine Salt


  • Catalogue No.:PA 32 0061020

  • CAS :

    NA

  • Molecular Formula : C16H25N3O4S

  • Molecular Weight : 355.45

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061021

Norantipyrine Glucuronide

Norantipyrine Glucuronide


  • Catalogue No.:PA 32 0061021

  • CAS :

    67566-02-3

  • Molecular Formula : C16H18N2O7

  • Molecular Weight : 350.33

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061022

3-Methyl-1-phenyl-1H-pyrazole-4,5-dione

3-Methyl-1-phenyl-1H-pyrazole-4,5-dione


  • Catalogue No.:PA 32 0061022

  • CAS :

    881-05-0

  • Molecular Formula : C10H8N2O2

  • Molecular Weight : 188.19

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061023

2-Oxo-3-(2-phenylhydrazono)butanoic Acid

2-Oxo-3-(2-phenylhydrazono)butanoic Acid


  • Catalogue No.:PA 32 0061023

  • CAS :

    27301-70-8

  • Molecular Formula : C10H10N2O3

  • Molecular Weight : 206.2

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061024

Edaravone Sulfate

Edaravone Sulfate


  • Catalogue No.:PA 32 0061024

  • CAS :

    76407-98-2

  • Molecular Formula : C10H10N2O4S

  • Molecular Weight : 254.26

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061025

5,5'-Dimethyl-2,2'-diphenyl-2',4'-dihydro-2H,3'H-[3,4'-bipyrazol]-3'-one

5,5'-Dimethyl-2,2'-diphenyl-2',4'-dihydro-2H,3'H-[3,4'-bipyrazol]-3'-one


  • Catalogue No.:PA 32 0061025

  • CAS :

    33421-60-2

  • Molecular Formula : C20H18N4O

  • Molecular Weight : 330.39

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061026

4-Hydroxy-5,5'-dimethyl-2,2'-diphenyl-2,2',4,4'-tetrahydro-3H,3'H-[4,4'-bipyrazole]-3,3'-dione

4-Hydroxy-5,5'-dimethyl-2,2'-diphenyl-2,2',4,4'-tetrahydro-3H,3'H-[4,4'-bipyrazole]-3,3'-dione


  • Catalogue No.:PA 32 0061026

  • CAS :

    153952-07-9

  • Molecular Formula : C20H18N4O3

  • Molecular Weight : 362.39

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061027

Edaravone Dimer N-Oxide

Edaravone Dimer N-Oxide


  • Catalogue No.:PA 32 0061027

  • CAS :

    NA

  • Molecular Formula : C20H16N4O3

  • Molecular Weight : 360.37

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061028

Ethyl 3-(3-methyl-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)butanoate

Ethyl 3-(3-methyl-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)butanoate


  • Catalogue No.:PA 32 0061028

  • CAS :

    87343-64-4

  • Molecular Formula : C16H18N2O3

  • Molecular Weight : 286.33

Drug Reference Standards & Impurity Synthesis in India
PAI 32 006002

Methyl 5-hydroxy-3-methyl-1-phenyl-1H-pyrazole-4-carboxylate

Methyl 5-hydroxy-3-methyl-1-phenyl-1H-pyrazole-4-carboxylate


  • Catalogue No.:PAI 32 006002

  • CAS :

    1186210-21-8

  • Molecular Formula : C12H12N2O3

  • Molecular Weight : 232.24

Drug Reference Standards & Impurity Synthesis in India
PAI 32 006003

Dimethyl 3,3'-dimethyl-5,5'-dioxo-1,1'-diphenyl-1,1',5,5'-tetrahydro-4H,4'H-[4,4'-bipyrazole]-4,4'-dicarboxylate

Dimethyl 3,3'-dimethyl-5,5'-dioxo-1,1'-diphenyl-1,1',5,5'-tetrahydro-4H,4'H-[4,4'-bipyrazole]-4,4'-dicarboxylate


  • Catalogue No.:PAI 32 006003

  • CAS :

    NA

  • Molecular Formula : C24H22N4O6

  • Molecular Weight : 462.46

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061029

1-(p-Tolyl)-1H-pyrazol-4-ol

1-(p-Tolyl)-1H-pyrazol-4-ol


  • Catalogue No.:PA 32 0061029

  • CAS :

    77458-34-5

  • Molecular Formula : C10H10N2O

  • Molecular Weight : 174.2

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061030

Ethyl (Z)-3-(2-phenylhydrazineylidene)butanoate

Ethyl (Z)-3-(2-phenylhydrazineylidene)butanoate


  • Catalogue No.:PA 32 0061030

  • CAS :

    NA

  • Molecular Formula : C12H16N2O2

  • Molecular Weight : 220.27

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061031

5-Methyl-1-nitroso-2-phenyl-1,2-dihydro-3H-pyrazol-3-one

5-Methyl-1-nitroso-2-phenyl-1,2-dihydro-3H-pyrazol-3-one


  • Catalogue No.:PA 32 0061031

  • CAS :

    NA

  • Molecular Formula : C10H9N3O2

  • Molecular Weight : 203.2

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061032

(1R,2S)-2-hydroxy-1-((R)-3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-1-sulfonic acid

(1R,2S)-2-hydroxy-1-((R)-3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-1-sulfonic acid


  • Catalogue No.:PA 32 0061032

  • CAS :

    2762440-12-8

  • Molecular Formula : C13H16N2O5S

  • Molecular Weight : 312.34

Drug Reference Standards & Impurity Synthesis in India
PA 32 0061033

(1R,2R)-2-hydroxy-1-((R)-3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-1-sulfonic acid

(1R,2R)-2-hydroxy-1-((R)-3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-1-sulfonic acid


  • Catalogue No.:PA 32 0061033

  • CAS :

    2762440-11-7

  • Molecular Formula : C13H16N2O5S

  • Molecular Weight : 312.34

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