azelastine and its Impurities

A histamine-H1-receptor antagonist, Azelastine is used in the treatment of rhinitis.It shows anti-histamine effect, mast-cell stabilizing effect and anti-inflammatory effect. Reference standards of Azelastine API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 34 results for azelastine Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 28 59000

Azelastine

Azelastine

  • Catalogue No.:PA 28 59000

  • CAS :

    58581-89-8

  • Molecular Formula : C22H24ClN3O

  • Molecular Weight : 381.90

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Drug Reference Standards & Impurity Synthesis in India
PA 01 98010

Azelastine - Impurity A

Benzoyl Hydrazine

  • Catalogue No.:PA 01 98010

  • CAS :

    613-94-5

  • Molecular Formula : C7H8N2O

  • Molecular Weight : 136.15

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Drug Reference Standards & Impurity Synthesis in India
PA 01 98020

Azelastine - Impurity B (Hydrochloride Salt)

N'-(1-Methylazepan-4-yl)benzohydrazine Hydrochloride

  • Catalogue No.:PA 01 98020

  • CAS :

    117078-69-0

  • Molecular Formula : C14H22ClN3O

  • Molecular Weight : 283.8

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Drug Reference Standards & Impurity Synthesis in India
PA 01 98030

Azelastine - Impurity C

2-[(4-Chlorophenyl)acetyl]benzoic Acid

  • Catalogue No.:PA 01 98030

  • CAS :

    53242-76-5

  • Molecular Formula : C15H11ClO3

  • Molecular Weight : 274.7

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Drug Reference Standards & Impurity Synthesis in India
PA 01 98040

Azelastine - Impurity D

4-(4-Chlorobenzyl)phthalazin-1(2H)-one

  • Catalogue No.:PA 01 98040

  • CAS :

    53242-88-9

  • Molecular Formula : C15H11ClN2O

  • Molecular Weight : 270.71

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Drug Reference Standards & Impurity Synthesis in India
PA 01 98050

Azelastine - Impurity E

3-(4-Chlorobenzal)phthalide

  • Catalogue No.:PA 01 98050

  • CAS :

    20526-97-0

  • Molecular Formula : C15H9ClO2

  • Molecular Weight : 256.68

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Drug Reference Standards & Impurity Synthesis in India
PA 01 98510

N-Desmethyl Azelastine

N-Desmethyl Azelastine

  • Catalogue No.:PA 01 98510

  • CAS :

    47491-38-3

  • Molecular Formula : C21H22ClN3O

  • Molecular Weight : 367.87

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Drug Reference Standards & Impurity Synthesis in India
PA 01 98520

Azelastine 3-Chloro-Isomer

Azelastine 3-Chloro-Isomer

  • Catalogue No.:PA 01 98520

  • CAS :

    37933-01-0

  • Molecular Formula : C22H24ClN3O

  • Molecular Weight : 381.9

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Drug Reference Standards & Impurity Synthesis in India
PA 01 98530

Azelastine N-Oxide (Mixture of Diastereomers)

Azelastine N-Oxide (Mixture of Diastereomers)

  • Catalogue No.:PA 01 98530

  • CAS :

    640279-88-5

  • Molecular Formula : C22H24ClN3O2

  • Molecular Weight : 397.9

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Drug Reference Standards & Impurity Synthesis in India
PA 01 98540

Azelastine 5-Member-Cyclic-Isomer Hydrochloride

Azelastine 5-Member-Cyclic-Isomer Hydrochloride

  • Catalogue No.:PA 01 98540

  • CAS :

    117078-70-3

  • Molecular Formula : C22H25Cl2N3O

  • Molecular Weight : 418.36

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Drug Reference Standards & Impurity Synthesis in India
PA 01 98550

4-Benzyl-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one

4-Benzyl-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one

  • Catalogue No.:PA 01 98550

  • CAS :

    NA

  • Molecular Formula : C22H25N3O

  • Molecular Weight : 347.45

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Drug Reference Standards & Impurity Synthesis in India
PA 01 98560

4-(4-Chlorophenyl)-1H-2,3-benzoxazin-1-one

4-(4-Chlorophenyl)-1H-2,3-benzoxazin-1-one

  • Catalogue No.:PA 01 98560

  • CAS :

    2224-83-1

  • Molecular Formula : C14H8ClNO2

  • Molecular Weight : 257.67

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Drug Reference Standards & Impurity Synthesis in India
PA 01 98570

Azelastine 3-Chloro-Isomer Hydrochloride

Azelastine 3-Chloro-Isomer Hydrochloride

  • Catalogue No.:PA 01 98570

  • CAS :

    NA

  • Molecular Formula : C22H25Cl2N3O

  • Molecular Weight : 418.36

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Drug Reference Standards & Impurity Synthesis in India
PA STI 009490

Azelastine-13C,d3

Azelastine-13C,d3

  • Catalogue No.:PA STI 009490

  • CAS :

    1217019-80-1

  • Molecular Formula : C2113CH21D3ClN3O

  • Molecular Weight : 385.91

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Drug Reference Standards & Impurity Synthesis in India
PA STI 009500

Azelastine-d3

Azelastine-d3

  • Catalogue No.:PA STI 009500

  • CAS :

    758637-88-6

  • Molecular Formula : C22H21D3ClN3O

  • Molecular Weight : 384.92

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Drug Reference Standards & Impurity Synthesis in India
PA STI 009510

Azelastine-13C,d3 N-Oxide (Mixture of Diastereomers)

Azelastine-13C,d3 N-Oxide (Mixture of Diastereomers)

  • Catalogue No.:PA STI 009510

  • CAS :

    1346602-76-3

  • Molecular Formula : C2113CH21D3ClN3O2

  • Molecular Weight : 401.91

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Drug Reference Standards & Impurity Synthesis in India
PA STI 028070

N-Desmethyl Azelastine-d4

N-Desmethyl Azelastine-d4

  • Catalogue No.:PA STI 028070

  • CAS :

    NA

  • Molecular Formula : C21H18D4ClN3O

  • Molecular Weight : 371.9

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Drug Reference Standards & Impurity Synthesis in India
PA STI 060420

N'-(1-Methylazepan-4-yl)benzohydrazine-d5

N'-(1-Methylazepan-4-yl)benzohydrazine-d5

  • Catalogue No.:PA STI 060420

  • CAS :

    1346599-80-1

  • Molecular Formula : C14H17D5ClN3O

  • Molecular Weight : 288.83

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Drug Reference Standards & Impurity Synthesis in India
PA 28 0591000

1-Methylazepan-4-one Hydrochloride

1-Methylazepan-4-one Hydrochloride

  • Catalogue No.:PA 28 0591000

  • CAS :

    19869-42-2

  • Molecular Formula : C7H14ClNO

  • Molecular Weight : 163.65

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Drug Reference Standards & Impurity Synthesis in India
PA 28 0591001

Mixture of two isomers: Z and E or (Cis and Trans)

Mixture of two isomers: Z and E or (Cis and Trans)

  • Catalogue No.:PA 28 0591001

  • CAS :

    20526-97-0

  • Molecular Formula : C15H9ClO2

  • Molecular Weight : 256.69

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088908

Azelastine D4 hydrochloride

Azelastine D4 hydrochloride

  • Catalogue No.:PA STI 088908

  • CAS :

    2747915-85-9

  • Molecular Formula : C22H21D4Cl2N3O

  • Molecular Weight : 422.39

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Drug Reference Standards & Impurity Synthesis in India
PA 28 0591002

(R)-4-[(4-Chlorophenyl)methyl]-2-(hexahydro-1-methyl-1-oxido-1H-azepin-4-yl)-1(2H)-phthalazinone;

(R)-4-[(4-Chlorophenyl)methyl]-2-(hexahydro-1-methyl-1-oxido-1H-azepin-4-yl)-1(2H)-phthalazinone;

  • Catalogue No.:PA 28 0591002

  • CAS :

    1346617-18-2

  • Molecular Formula : C22H24ClN3O2

  • Molecular Weight : 397.9

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Drug Reference Standards & Impurity Synthesis in India
PA 28 0591003

4-(Chlorobenzyl)-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one

4-(Chlorobenzyl)-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one

  • Catalogue No.:PA 28 0591003

  • CAS :

    1228258-93-2

  • Molecular Formula : C22H24ClN3O

  • Molecular Weight : 381.9

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Drug Reference Standards & Impurity Synthesis in India
PA 28 0591004

(S)-Azelastine N-Oxide

(S)-Azelastine N-Oxide

  • Catalogue No.:PA 28 0591004

  • CAS :

    1346617-06-8

  • Molecular Formula : C22H24ClN3O2

  • Molecular Weight : 397.9

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Drug Reference Standards & Impurity Synthesis in India
PA IMP 15 18

Azelastine HCl Impurity E (IMP/15/18)

Azelastine HCl Impurity E (IMP/15/18)

  • Catalogue No.:PA IMP 15 18

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA IMP 12 18

Azelastine HCl Impurity D (IMP/12/18)

Azelastine HCl Impurity D (IMP/12/18)

  • Catalogue No.:PA IMP 12 18

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA 28 0591005

N-Nitroso Azelastine

N-Nitroso Azelastine

  • Catalogue No.:PA 28 0591005

  • CAS :

    NA

  • Molecular Formula : C14H20N4O2

  • Molecular Weight : 276.34

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Drug Reference Standards & Impurity Synthesis in India
PA 28 0591006

N-Benzoylnitrous hydrazide

N-Benzoylnitrous hydrazide

  • Catalogue No.:PA 28 0591006

  • CAS :

    NA

  • Molecular Formula : C7H7N3O2

  • Molecular Weight : 165.15

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Drug Reference Standards & Impurity Synthesis in India
PA 28 0591007

4-(2-Chlorobenzyl)-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one

4-(2-Chlorobenzyl)-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one

  • Catalogue No.:PA 28 0591007

  • CAS :

    752922-66-0

  • Molecular Formula : C22H24ClN3O

  • Molecular Weight : 381.9

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Drug Reference Standards & Impurity Synthesis in India
PA 28 0591008

N-(4-Aminobutyl)-N-ethylisoluminol

N-(4-Aminobutyl)-N-ethylisoluminol

  • Catalogue No.:PA 28 0591008

  • CAS :

    66612-29-1

  • Molecular Formula : C14H20N4O2

  • Molecular Weight : 276.34

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Drug Reference Standards & Impurity Synthesis in India
PA 28 0591009

Azelastine Impurity (Mixture OF Isomers)

Azelastine Impurity (Mixture OF Isomers)

  • Catalogue No.:PA 28 0591009

  • CAS :

    174826-63-2

  • Molecular Formula : C9H17N3O

  • Molecular Weight : 183.26

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Drug Reference Standards & Impurity Synthesis in India
PA 28 0591010

4-Hydrazinyl-1-methylazepane

4-Hydrazinyl-1-methylazepane

  • Catalogue No.:PA 28 0591010

  • CAS :

    110406-95-6

  • Molecular Formula : C7H17N3

  • Molecular Weight : 143.23

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Drug Reference Standards & Impurity Synthesis in India
PA 28 0591011

4-Hydrazinyl-1-methylazepane Dihydrochloride

4-Hydrazinyl-1-methylazepane Dihydrochloride

  • Catalogue No.:PA 28 0591011

  • CAS :

    169123-29-9

  • Molecular Formula : C7H19Cl2N3

  • Molecular Weight : 216.15

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Drug Reference Standards & Impurity Synthesis in India
PA 28 0591012

4-(4-Fluoro-3-(4-(2-methylcyclopropanecarbonyl)piperazine-1-carbonyl)benzyl)phthalazin-1(2H)-one

4-(4-Fluoro-3-(4-(2-methylcyclopropanecarbonyl)piperazine-1-carbonyl)benzyl)phthalazin-1(2H)-one

  • Catalogue No.:PA 28 0591012

  • CAS :

    NA

  • Molecular Formula : C25H25FN4O3

  • Molecular Weight : 448.5

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