valdecoxib and its Impurities

Valdecoxib used in the treatment of osteoarthritis, rheumatoid arthritis, and painful menstruation and menstrual symptoms. It is a selective cyclooxygenase-2 inhibitor.Reference standards of Valdecoxib API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 34 results for valdecoxib Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 22 02000

Valdecoxib

Valdecoxib

  • Catalogue No.:PA 22 02000

  • CAS :

    181695-72-7

  • Molecular Formula : C16H14N2O3S

  • Molecular Weight : 314.36

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02020

Valdecoxib - Impurity B

Valdecoxib Dimer

  • Catalogue No.:PA 22 02020

  • CAS :

    1373038-60-8

  • Molecular Formula : C32H25N3O6S2

  • Molecular Weight : 611.69

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02040

Valdecoxib - Impurity D

Valdecoxib Sulfonic Acid

  • Catalogue No.:PA 22 02040

  • CAS :

    181696-35-5

  • Molecular Formula : C16H13NO4S

  • Molecular Weight : 315.34

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02060

Valdecoxib - Impurity F

Valdecoxib Sulfonyl Chloride

  • Catalogue No.:PA 22 02060

  • CAS :

    509074-26-4

  • Molecular Formula : C16H12ClNO3S

  • Molecular Weight : 333.79

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02510

1-Hydroxy Valdecoxib

1-Hydroxy Valdecoxib

  • Catalogue No.:PA 22 02510

  • CAS :

    181695-81-8

  • Molecular Formula : C16H14N2O4S

  • Molecular Weight : 330.36

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02520

2-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonamide

2-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonamide

  • Catalogue No.:PA 22 02520

  • CAS :

    2304623-35-4

  • Molecular Formula : C16H14N2O3S

  • Molecular Weight : 314.36

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02530

2-(5-Methyl-4-phenylisoxazol-3-yl)benzenesulfonamide

2-(5-Methyl-4-phenylisoxazol-3-yl)benzenesulfonamide

  • Catalogue No.:PA 22 02530

  • CAS :

    2304623-37-6

  • Molecular Formula : C16H14N2O3S

  • Molecular Weight : 314.36

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02540

N-((2-(5-Methyl-3-phenylisoxazol-4-yl)phenyl)sulfonyl)propionamide

N-((2-(5-Methyl-3-phenylisoxazol-4-yl)phenyl)sulfonyl)propionamide

  • Catalogue No.:PA 22 02540

  • CAS :

    2304623-36-5

  • Molecular Formula : C19H18N2O4S

  • Molecular Weight : 370.42

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02550

N-((2-(5-Methyl-4-phenylisoxazol-3-yl)phenyl)sulfonyl)propionamide

N-((2-(5-Methyl-4-phenylisoxazol-3-yl)phenyl)sulfonyl)propionamide

  • Catalogue No.:PA 22 02550

  • CAS :

    2304623-38-7

  • Molecular Formula : C19H18N2O4S

  • Molecular Weight : 370.42

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02560

N-((4-(5-Methyl-4-phenylisoxazol-3-yl)phenyl)sulfonyl)propionamide

N-((4-(5-Methyl-4-phenylisoxazol-3-yl)phenyl)sulfonyl)propionamide

  • Catalogue No.:PA 22 02560

  • CAS :

    2235371-89-6

  • Molecular Formula : C19H18N2O4S

  • Molecular Weight : 370.42

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02570

5-Methyl-3,4-diphenylisoxazole

5-Methyl-3,4-diphenylisoxazole

  • Catalogue No.:PA 22 02570

  • CAS :

    37928-17-9

  • Molecular Formula : C16H13NO

  • Molecular Weight : 235.28

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02580

Methyl 4-(5-methyl-3-phenylisoxazol-4-yl)benzenesulfonate

Methyl 4-(5-methyl-3-phenylisoxazol-4-yl)benzenesulfonate

  • Catalogue No.:PA 22 02580

  • CAS :

    2749361-92-8

  • Molecular Formula : C17H15NO4S

  • Molecular Weight : 329.37

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02590

Ethyl 4-(5-methyl-3-phenylisoxazol-4-yl)benzenesulfonate

Ethyl 4-(5-methyl-3-phenylisoxazol-4-yl)benzenesulfonate

  • Catalogue No.:PA 22 02590

  • CAS :

    1884279-18-8

  • Molecular Formula : C18H17NO4S

  • Molecular Weight : 343.4

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02600

3-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonamide

3-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonamide

  • Catalogue No.:PA 22 02600

  • CAS :

    386273-25-2

  • Molecular Formula : C16H14N2O3S

  • Molecular Weight : 314.36

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02610

3-(5-Methyl-4-(4-sulfamoylphenyl)isoxazol-3-yl)benzenesulfonamide

3-(5-Methyl-4-(4-sulfamoylphenyl)isoxazol-3-yl)benzenesulfonamide

  • Catalogue No.:PA 22 02610

  • CAS :

    1373038-59-5

  • Molecular Formula : C16H15N3O5S2

  • Molecular Weight : 393.44

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02620

3-Phenyl-4-(4-aminosulfonylbenzyl)-5-methylisoxazole

3-Phenyl-4-(4-aminosulfonylbenzyl)-5-methylisoxazole

  • Catalogue No.:PA 22 02620

  • CAS :

    1391052-01-9

  • Molecular Formula : C17H16N2O3S

  • Molecular Weight : 328.39

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02630

3-(5-Methyl-4-phenylisoxazol-3-yl)benzenesulfonamide

3-(5-Methyl-4-phenylisoxazol-3-yl)benzenesulfonamide

  • Catalogue No.:PA 22 02630

  • CAS :

    1373038-56-2

  • Molecular Formula : C16H14N2O3S

  • Molecular Weight : 314.36

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02640

4-(5-Methyl-4-phenylisoxazol-3-yl)benzenesulfonamide

4-(5-Methyl-4-phenylisoxazol-3-yl)benzenesulfonamide

  • Catalogue No.:PA 22 02640

  • CAS :

    181696-12-8

  • Molecular Formula : C16H14N2O3S

  • Molecular Weight : 314.36

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02650

3,3'-(5-Methylisoxazole-3,4-diyl)dibenzenesulfonamide

3,3'-(5-Methylisoxazole-3,4-diyl)dibenzenesulfonamide

  • Catalogue No.:PA 22 02650

  • CAS :

    2616621-78-2

  • Molecular Formula : C16H15N3O5S2

  • Molecular Weight : 393.44

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02660

N-((3-(5-Methyl-3-phenylisoxazol-4-yl)phenyl)sulfonyl)propionamide

N-((3-(5-Methyl-3-phenylisoxazol-4-yl)phenyl)sulfonyl)propionamide

  • Catalogue No.:PA 22 02660

  • CAS :

    1709956-89-7

  • Molecular Formula : C19H18N2O4S

  • Molecular Weight : 370.42

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02670

N-((4-(5-Methyl-3-(3-(N-propionylsulfamoyl)phenyl)isoxazol-4-yl)phenyl)sulfonyl)propionamide

N-((4-(5-Methyl-3-(3-(N-propionylsulfamoyl)phenyl)isoxazol-4-yl)phenyl)sulfonyl)propionamide

  • Catalogue No.:PA 22 02670

  • CAS :

    1708094-99-8

  • Molecular Formula : C22H23N3O7S2

  • Molecular Weight : 505.56

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02680

N-((4-((5-Methyl-3-phenylisoxazol-4-yl)methyl)phenyl)sulfonyl)propionamide

N-((4-((5-Methyl-3-phenylisoxazol-4-yl)methyl)phenyl)sulfonyl)propionamide

  • Catalogue No.:PA 22 02680

  • CAS :

    NA

  • Molecular Formula : C20H20N2O4S

  • Molecular Weight : 384.45

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02690

N-((3-(5-Methyl-4-phenylisoxazol-3-yl)phenyl)sulfonyl)propionamide

N-((3-(5-Methyl-4-phenylisoxazol-3-yl)phenyl)sulfonyl)propionamide

  • Catalogue No.:PA 22 02690

  • CAS :

    2229657-81-0

  • Molecular Formula : C19H18N2O4S

  • Molecular Weight : 370.42

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02700

N,N'-(3,3'-(5-Methylisoxazole-3,4-diyl)bis(3,1-phenylenesulfonyl))dipropionamide

N,N'-(3,3'-(5-Methylisoxazole-3,4-diyl)bis(3,1-phenylenesulfonyl))dipropionamide

  • Catalogue No.:PA 22 02700

  • CAS :

    2860553-54-2

  • Molecular Formula : C22H23N3O7S2

  • Molecular Weight : 505.56

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Drug Reference Standards & Impurity Synthesis in India
PA STI 032460

4,5-Dihydro-5-methyl-3,4-diphenyl-5-isoxazolol-13C2, 15N

4,5-Dihydro-5-methyl-3,4-diphenyl-5-isoxazolol-13C2, 15N

  • Catalogue No.:PA STI 032460

  • CAS :

    1189468-68-5

  • Molecular Formula : C1413C2H1515NO2

  • Molecular Weight : 256.27

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Drug Reference Standards & Impurity Synthesis in India
PA STI 032470

4,5-Dihydro-5-methyl-d3-3,4-diphenyl-5-isoxazolol

4,5-Dihydro-5-methyl-d3-3,4-diphenyl-5-isoxazolol

  • Catalogue No.:PA STI 032470

  • CAS :

    NA

  • Molecular Formula : C16H12D3NO2

  • Molecular Weight : 256.31

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Drug Reference Standards & Impurity Synthesis in India
PA STI 086410

Valdecoxib-13C2,15N

Valdecoxib-13C2,15N

  • Catalogue No.:PA STI 086410

  • CAS :

    1189428-23-6

  • Molecular Formula : C1413CH14N15NO3S

  • Molecular Weight : 317.34

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Drug Reference Standards & Impurity Synthesis in India
PA STI 086420

Valdecoxib-d3

Valdecoxib-d3

  • Catalogue No.:PA STI 086420

  • CAS :

    1219794-90-7

  • Molecular Formula : C16H11D3N2O3S

  • Molecular Weight : 317.38

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Drug Reference Standards & Impurity Synthesis in India
PA STI 086430

Valdecoxib Sulfonic Acid-13C2,15N

Valdecoxib Sulfonic Acid-13C2,15N

  • Catalogue No.:PA STI 086430

  • CAS :

    1391053-52-3

  • Molecular Formula : C1413C2H1315NO4S

  • Molecular Weight : 318.32

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Drug Reference Standards & Impurity Synthesis in India
PA STI 086440

Valdecoxib Sulfonyl Chloride-13C2,15N

Valdecoxib Sulfonyl Chloride-13C2,15N

  • Catalogue No.:PA STI 086440

  • CAS :

    1391051-92-5

  • Molecular Formula : C1413C2H12Cl15NO3S

  • Molecular Weight : 336.77

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Drug Reference Standards & Impurity Synthesis in India
PA 22 02720

2-Methyl-4,5-diphenyloxazole

2-Methyl-4,5-diphenyloxazole

  • Catalogue No.:PA 22 02720

  • CAS :

    14224-99-8

  • Molecular Formula : C16H13NO

  • Molecular Weight : 235.29

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Drug Reference Standards & Impurity Synthesis in India
PA 22 0021000

3-(N-Tosyl-L-alaninyloxy)-5-phenylpyrrole

3-(N-Tosyl-L-alaninyloxy)-5-phenylpyrrole

  • Catalogue No.:PA 22 0021000

  • CAS :

    221446-55-5

  • Molecular Formula : C20H20N2O4S

  • Molecular Weight : 384.45

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Drug Reference Standards & Impurity Synthesis in India
PA 22 0021001

4,5-Dihydro-5-methyl-3,4-diphenyl-5-isoxazolol

4,5-Dihydro-5-methyl-3,4-diphenyl-5-isoxazolol

  • Catalogue No.:PA 22 0021001

  • CAS :

    181696-73-1

  • Molecular Formula : C16H15NO2

  • Molecular Weight : 253.3

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Drug Reference Standards & Impurity Synthesis in India
PA 22 0021002

4-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonamide

4-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonamide

  • Catalogue No.:PA 22 0021002

  • CAS :

    181695-72-7

  • Molecular Formula : C16H14N2O3S

  • Molecular Weight : 314.36

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