zafirlukast and its Impurities

Zafirlukast is used to prevent asthma symptoms and to decrease the number of asthma attacks in people 5 and older. It is an orally administered leukotriene receptor antagonist. Reference standards of Zafirlukast API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 22 results for zafirlukast Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 26 01000

Zafirlukast

Zafirlukast

  • Catalogue No.:PA 26 01000

  • CAS :

    107753-78-6

  • Molecular Formula : C31H33N3O6S

  • Molecular Weight : 575.68

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Drug Reference Standards & Impurity Synthesis in India
PA 26 01510

Decyclopentyl Zafirlukast Methyl Ester

Decyclopentyl Zafirlukast Methyl Ester

  • Catalogue No.:PA 26 01510

  • CAS :

    1159195-67-1

  • Molecular Formula : C27H27N3O6S

  • Molecular Weight : 521.58

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Drug Reference Standards & Impurity Synthesis in India
PA 26 01520

Zafirlukast m-Tolyl Isomer

Zafirlukast m-Tolyl Isomer

  • Catalogue No.:PA 26 01520

  • CAS :

    1159195-69-3

  • Molecular Formula : C31H33N3O6S

  • Molecular Weight : 575.68

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Drug Reference Standards & Impurity Synthesis in India
PA 26 01530

Zafirlukast p-Tolyl Isomer

Zafirlukast p-Tolyl Isomer

  • Catalogue No.:PA 26 01530

  • CAS :

    1159195-70-6

  • Molecular Formula : C31H33N3O6S

  • Molecular Weight : 575.68

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Drug Reference Standards & Impurity Synthesis in India
PA 26 01540

Dicyclopentyl (3,3'-((2-methoxy-4-((o-tolylsulfonyl)carbamoyl)phenyl)methylene)bis(1-methyl-1H-indole-5,3-diyl))dicarbamate

Dicyclopentyl (3,3'-((2-methoxy-4-((o-tolylsulfonyl)carbamoyl)phenyl)methylene)bis(1-methyl-1H-indole-5,3-diyl))dicarbamate

  • Catalogue No.:PA 26 01540

  • CAS :

    1160235-24-4

  • Molecular Formula : C46H49N5O8S

  • Molecular Weight : 831.97

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Drug Reference Standards & Impurity Synthesis in India
PA 26 01550

Cyclopentyl (2,3-bis(2-Methoxy-4-((o-tolylsulfonyl)carbamoyl)benzyl)-1-methyl-1H-indol-5-yl)carbamate

Cyclopentyl (2,3-bis(2-Methoxy-4-((o-tolylsulfonyl)carbamoyl)benzyl)-1-methyl-1H-indol-5-yl)carbamate

  • Catalogue No.:PA 26 01550

  • CAS :

    1160235-26-6

  • Molecular Formula : C47H48N4O10S2

  • Molecular Weight : 893.03

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Drug Reference Standards & Impurity Synthesis in India
PA STI 024800

Decyclopentyl Zafirlukast-d3 Methyl Ester

Decyclopentyl Zafirlukast-d3 Methyl Ester

  • Catalogue No.:PA STI 024800

  • CAS :

    1795011-90-3

  • Molecular Formula : C27H24D3N3O6S

  • Molecular Weight : 524.60

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Drug Reference Standards & Impurity Synthesis in India
PA STI 087570

Zafirlukast-d7

Zafirlukast-d7

  • Catalogue No.:PA STI 087570

  • CAS :

    1217174-18-9

  • Molecular Formula : C31H26D7N3O6S

  • Molecular Weight : 582.72

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Drug Reference Standards & Impurity Synthesis in India
PA STI 087580

Zafirlukast m-Tolyl Isomer-d7

Zafirlukast m-Tolyl Isomer-d7

  • Catalogue No.:PA STI 087580

  • CAS :

    1794760-52-3

  • Molecular Formula : C31H26D7N3O6S

  • Molecular Weight : 582.72

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Drug Reference Standards & Impurity Synthesis in India
PA STI 087590

Zafirlukast p-Tolyl Isomer-d7

Zafirlukast p-Tolyl Isomer-d7

  • Catalogue No.:PA STI 087590

  • CAS :

    1794886-13-7

  • Molecular Formula : C31H26D7N3O6S

  • Molecular Weight : 582.72

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Drug Reference Standards & Impurity Synthesis in India
PA 26 01560

2-Chloro Zafirlukast

2-Chloro Zafirlukast

  • Catalogue No.:PA 26 01560

  • CAS :

    NA

  • Molecular Formula : C31H32ClN3O6S

  • Molecular Weight : 610.12

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Drug Reference Standards & Impurity Synthesis in India
PA 26 01570

Zafirlukast Impurity F

Zafirlukast Impurity F

  • Catalogue No.:PA 26 01570

  • CAS :

    1160235-28-8

  • Molecular Formula : C49H49N5O8S

  • Molecular Weight : 868.01

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Drug Reference Standards & Impurity Synthesis in India
PA 26 01580

Zafirlukast Impurity G

Zafirlukast Impurity G

  • Catalogue No.:PA 26 01580

  • CAS :

    1391990-94-5

  • Molecular Formula : C37H48N4O5

  • Molecular Weight : 628.8

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Drug Reference Standards & Impurity Synthesis in India
PA 26 0011000

Methyl 4-[(5-Amino-1-methylindol-3-yl)methyl]-3-methoxybenzoate

Methyl 4-[(5-Amino-1-methylindol-3-yl)methyl]-3-methoxybenzoate

  • Catalogue No.:PA 26 0011000

  • CAS :

    107754-14-3

  • Molecular Formula : C19H20N2O3

  • Molecular Weight : 324.38

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Drug Reference Standards & Impurity Synthesis in India
PA 26 0011001

4-[[5-[[(Cyclopentyloxy)carbonyl]amino]-1-methyl-1H-indol-3-yl]methyl]-3-methoxy-benzoic acid methyl ester

4-[[5-[[(Cyclopentyloxy)carbonyl]amino]-1-methyl-1H-indol-3-yl]methyl]-3-methoxy-benzoic acid methyl ester

  • Catalogue No.:PA 26 0011001

  • CAS :

    107754-19-8

  • Molecular Formula : C25H28N2O5

  • Molecular Weight : 436.51

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Drug Reference Standards & Impurity Synthesis in India
PA 26 0011002

4-[[5-[[(Cyclopentyloxy)carbonyl]amino]-1-methyl-1H-indol-3-yl]methyl]-3-methoxybenzoic acid

4-[[5-[[(Cyclopentyloxy)carbonyl]amino]-1-methyl-1H-indol-3-yl]methyl]-3-methoxybenzoic acid

  • Catalogue No.:PA 26 0011002

  • CAS :

    107754-20-1

  • Molecular Formula : C24H26N2O5

  • Molecular Weight : 422.48

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Drug Reference Standards & Impurity Synthesis in India
PA 26 0011003

3-Methoxy-4-((1-methyl-5-nitro-1H-indol-3-yl)methyl)-N-(o-tolylsulfonyl)benzamide

3-Methoxy-4-((1-methyl-5-nitro-1H-indol-3-yl)methyl)-N-(o-tolylsulfonyl)benzamide

  • Catalogue No.:PA 26 0011003

  • CAS :

    143052-95-3

  • Molecular Formula : C25H23N3O6S

  • Molecular Weight : 493.53

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Drug Reference Standards & Impurity Synthesis in India
PA 26 0011004

Bisphenol A bis(2-hydroxypropyl) ether

Bisphenol A bis(2-hydroxypropyl) ether

  • Catalogue No.:PA 26 0011004

  • CAS :

    116-37-0

  • Molecular Formula : C21H28O4

  • Molecular Weight : 344.45

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Drug Reference Standards & Impurity Synthesis in India
PA 26 0011005

4-((5-Amino-1-methyl-1H-indol-3-yl)methyl)-3-methoxy-N-(o-tolylsulfonyl)benzamide

4-((5-Amino-1-methyl-1H-indol-3-yl)methyl)-3-methoxy-N-(o-tolylsulfonyl)benzamide

  • Catalogue No.:PA 26 0011005

  • CAS :

    219583-10-5

  • Molecular Formula : C25H25N3O4S

  • Molecular Weight : 463.55

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Drug Reference Standards & Impurity Synthesis in India
PA 26 0011006

Zafirlukast Oxidative Dimer

Zafirlukast Oxidative Dimer

  • Catalogue No.:PA 26 0011006

  • CAS :

    NA

  • Molecular Formula : C62H64N6O12S2

  • Molecular Weight : 1149.34

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Drug Reference Standards & Impurity Synthesis in India
PA 26 0011007

2-Methoxyethyl (o-tolylsulfonyl)carbamate

2-Methoxyethyl (o-tolylsulfonyl)carbamate

  • Catalogue No.:PA 26 0011007

  • CAS :

    103852-92-2

  • Molecular Formula : C11H15NO5S

  • Molecular Weight : 273.3

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Drug Reference Standards & Impurity Synthesis in India
PA 26 0011008

Methyl (1-methyl-1H-indol-5-yl)carbamate

Methyl (1-methyl-1H-indol-5-yl)carbamate

  • Catalogue No.:PA 26 0011008

  • CAS :

    1795185-03-3

  • Molecular Formula : C11H12N2O2

  • Molecular Weight : 204.23

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