ketotifen and its Impurities

Ketotifen is used to treat allergic conjunctivitis. It is sold under the brand name Zaditor. It is most commonly sold as a salt with fumaric acid, ketotifen fumarate, and is available in two forms. Reference standards of Ketotifen API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 18 results for ketotifen Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 11 06000

Ketotifen

Ketotifen

  • Catalogue No.:PA 11 06000

  • CAS :

    34580-13-7

  • Molecular Formula : C19H19NOS

  • Molecular Weight : 309.43

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Drug Reference Standards & Impurity Synthesis in India
PA STI 055300

Ketotifen-d3 Fumarate

Ketotifen-d3 Fumarate

  • Catalogue No.:PA STI 055300

  • CAS :

    1795138-23-6

  • Molecular Formula : C23H20D3NO5S

  • Molecular Weight : 428.52

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Drug Reference Standards & Impurity Synthesis in India
PAI 11 004010

4-(1-Methylpiperidin-4-ylidene)-9,10-dihydro-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-ol

4-(1-Methylpiperidin-4-ylidene)-9,10-dihydro-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-ol

  • Catalogue No.:PAI 11 004010

  • CAS :

    43076-12-6

  • Molecular Formula : C19H21NOS

  • Molecular Weight : 311.44

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Drug Reference Standards & Impurity Synthesis in India
PA IPIPRS 116 14

Ketotifen Fumarate (IPRS/116/14)-from IPC

Ketotifen Fumarate (IPRS/116/14)-from IPC

  • Catalogue No.:PA IPIPRS 116 14

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0000161

Ketotifen impurity G (Y0000161)

Ketotifen impurity G (Y0000161)

  • Catalogue No.:PA EPY0000161

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0001617

Ketotifen for peak identification (Y0001617)

Ketotifen for peak identification (Y0001617)

  • Catalogue No.:PA EPY0001617

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0001619

Ketotifen hydrogen fumarate (Y0001619)

Ketotifen hydrogen fumarate (Y0001619)

  • Catalogue No.:PA EPY0001619

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PAI 11 004011

4-(1-Methylpiperidin-4-yl)-9,10-dihydro-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-ol

4-(1-Methylpiperidin-4-yl)-9,10-dihydro-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-ol

  • Catalogue No.:PAI 11 004011

  • CAS :

    NA

  • Molecular Formula : C19H23NOS

  • Molecular Weight : 313.46

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Drug Reference Standards & Impurity Synthesis in India
PA 11 0061000

10-Methoxy-4H-benzo[4,5]cyclohepta[1,2- b]thiophen-4-one

10-Methoxy-4H-benzo[4,5]cyclohepta[1,2- b]thiophen-4-one

  • Catalogue No.:PA 11 0061000

  • CAS :

    59743-84-9

  • Molecular Formula : C14H10O2S

  • Molecular Weight : 242.29

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Drug Reference Standards & Impurity Synthesis in India
PA 11 0071000

Norketotifen hydrogen fumarate

N-Desmethylketotifen Hydrogen Fumarate

  • Catalogue No.:PA 11 0071000

  • CAS :

    930765-16-5

  • Molecular Formula : C22H21NO5S

  • Molecular Weight : 411.47

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Drug Reference Standards & Impurity Synthesis in India
PA 11 0061001

2-(4-(10-oxo-9,10-Dihydro-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-ylidene)piperidin-1-yl)succinic Acid

2-(4-(10-oxo-9,10-Dihydro-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-ylidene)piperidin-1-yl)succinic Acid

  • Catalogue No.:PA 11 0061001

  • CAS :

    NA

  • Molecular Formula : C22H21NO5S

  • Molecular Weight : 411.47

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Drug Reference Standards & Impurity Synthesis in India
PA 11 0061002

3-Chloro-4-(piperidin-4-ylidene)-4,9-dihydro-10H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-one

3-Chloro-4-(piperidin-4-ylidene)-4,9-dihydro-10H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-one

  • Catalogue No.:PA 11 0061002

  • CAS :

    NA

  • Molecular Formula : C18H16ClNOS

  • Molecular Weight : 329.84

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Drug Reference Standards & Impurity Synthesis in India
PA 11 0061003

2-Chloro-4-(piperidin-4-ylidene)-4,9-dihydro-10H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-one

2-Chloro-4-(piperidin-4-ylidene)-4,9-dihydro-10H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-one

  • Catalogue No.:PA 11 0061003

  • CAS :

    NA

  • Molecular Formula : C18H16ClNOS

  • Molecular Weight : 329.84

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Drug Reference Standards & Impurity Synthesis in India
PA 11 0061004

Norketotifen

Norketotifen

  • Catalogue No.:PA 11 0061004

  • CAS :

    34580-20-6

  • Molecular Formula : C18H17NOS

  • Molecular Weight : 295.4

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Drug Reference Standards & Impurity Synthesis in India
PA 11 0061005

2-Bromo-10-methoxy-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one

2-Bromo-10-methoxy-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one

  • Catalogue No.:PA 11 0061005

  • CAS :

    111428-56-9

  • Molecular Formula : C14H9BrO2S

  • Molecular Weight : 321.19

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Drug Reference Standards & Impurity Synthesis in India
PA 11 0061006

4-Chloro-1-methylpiperidine

4-Chloro-1-methylpiperidine

  • Catalogue No.:PA 11 0061006

  • CAS :

    5570-77-4

  • Molecular Formula : C6H12ClN

  • Molecular Weight : 133.62

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Drug Reference Standards & Impurity Synthesis in India
PA 11 0061007

9-Bromo-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one

9-Bromo-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one

  • Catalogue No.:PA 11 0061007

  • CAS :

    57568-63-5

  • Molecular Formula : C13H7BrOS

  • Molecular Weight : 291.16

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Drug Reference Standards & Impurity Synthesis in India
PA 11 0061008

2-Bromo-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one

2-Bromo-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-one

  • Catalogue No.:PA 11 0061008

  • CAS :

    126939-25-1

  • Molecular Formula : C13H7BrOS

  • Molecular Weight : 291.16

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