Esomeprazole-Impurities | Pharmaffiliates

esomeprazole and its Impurities

The (S)-(−)-enantiomer of omeprazole, it is a proton pump inhibitor, which is used to reduce the stomach acid. It treats gastroesophegeal reflux and peptic ulcers. It is an OTC drug in many countries. Reference standards of Esomeprazole API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 59 results for esomeprazole Impurities
PA 05 17000

Esomeprazole - API

Esomeprazole


  • Catalogue No.:PA 05 17000

  • CAS :

    119141-88-7

  • Molecular Formula : C17H19N3O3S

  • Molecular Weight : 345.42

PA 05 18010

Esomeprazole - Impurity A

5-Methoxy-2-mercaptobenzimidazole


  • Catalogue No.:PA 05 18010

  • CAS :

    37052-78-1

  • Molecular Formula : C8H8N2OS

  • Molecular Weight : 180.23

PA 05 18020

Esomeprazole - Impurity B

4-Desmethoxy Omeprazole


  • Catalogue No.:PA 05 18020

  • CAS :

    110374-16-8

  • Molecular Formula : C16H17N3O2S

  • Molecular Weight : 315.39

PA 05 18030

Esomeprazole - Impurity C

Omeprazole Sulfide


  • Catalogue No.:PA 05 18030

  • CAS :

    73590-85-9

  • Molecular Formula : C17H19N3O2S

  • Molecular Weight : 329.42

PA 05 18040

Esomeprazole - Impurity D

Omeprazole Sulphone


  • Catalogue No.:PA 05 18040

  • CAS :

    88546-55-8

  • Molecular Formula : C17H19N3O4S

  • Molecular Weight : 361.42

PA 05 18050

Esomeprazole - Impurity E

Omeprazole N-Oxide


  • Catalogue No.:PA 05 18050

  • CAS :

    176219-04-8

  • Molecular Formula : C17H19N3O4S

  • Molecular Weight : 361.42

PA 05 18060

Esomeprazole - Impurity F

(R)-Omeprazole Sodium Salt


  • Catalogue No.:PA 05 18060

  • CAS :

    161796-77-6

  • Molecular Formula : C17H19N3NaO3S

  • Molecular Weight : 368.41

PA 05 18080

Esomeprazole - Impurity H

4-Desmethoxy-4-chloro Omeprazole


  • Catalogue No.:PA 05 18080

  • CAS :

    863029-89-4

  • Molecular Formula : C16H16ClN3O2S

  • Molecular Weight : 349.84

PA 05 18090

Esomeprazole - Impurity I

Omeprazole Sulfone N-Oxide


  • Catalogue No.:PA 05 18090

  • CAS :

    158812-85-2

  • Molecular Formula : C17H19N3O5S

  • Molecular Weight : 377.41

PA 05 18510

Esomeprazole Potassium - API

Esomeprazole Potassium


  • Catalogue No.:PA 05 18510

  • CAS :

    161796-84-5

  • Molecular Formula : C17H19KN3O3S

  • Molecular Weight : 384.51

PA 05 18520

Esomeprazole Sodium

Esomeprazole Sodium


  • Catalogue No.:PA 05 18520

  • CAS :

    161796-78-7

  • Molecular Formula : C17H18N3NaO3S

  • Molecular Weight : 367.4

PA 05 18530

2-(5-Methoxy-1H-benzoimidazole-2-ylmethyl)-3,5-dimethyl-1H-pyridin-4-one

2-(5-Methoxy-1H-benzoimidazole-2-ylmethyl)-3,5-dimethyl-1H-pyridin-4-one


  • Catalogue No.:PA 05 18530

  • CAS :

    1384163-92-1

  • Molecular Formula : C16H17N3O2

  • Molecular Weight : 283.33

PA 05 18540

2-((5-Methoxy-1H-benzo[d]imidazole-2-ylthio)methyl)-3,5-dimethylpyridin-4-ol

2-((5-Methoxy-1H-benzo[d]imidazole-2-ylthio)methyl)-3,5-dimethylpyridin-4-ol


  • Catalogue No.:PA 05 18540

  • CAS :

    103876-98-8

  • Molecular Formula : C16H17N3O2S

  • Molecular Weight : 315.39

PA 05 18550

1-(6-Methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylic acid Hydrochloride

1-(6-Methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylic acid Hydrochloride


  • Catalogue No.:PA 05 18550

  • CAS :

    2172852-91-2

  • Molecular Formula : C16H16ClN3O4

  • Molecular Weight : 349.77

PA 05 18560

3,5-Dimethyl-4-nitropyridine 1-Oxide

3,5-Dimethyl-4-nitropyridine 1-Oxide


  • Catalogue No.:PA 05 18560

  • CAS :

    14248-66-9

  • Molecular Formula : C7H8N2O3

  • Molecular Weight : 168.15

PA 05 18570

2-(Chloromethyl)-3,5-dimethylpyridine Hydrochloride

2-(Chloromethyl)-3,5-dimethylpyridine Hydrochloride


  • Catalogue No.:PA 05 18570

  • CAS :

    73590-93-9

  • Molecular Formula : C8H11Cl2N

  • Molecular Weight : 192.09

PA 05 18580

2-(Chloromethyl)-3,5-dimethyl-4-nitropyridine Hydrochloride

2-(Chloromethyl)-3,5-dimethyl-4-nitropyridine Hydrochloride


  • Catalogue No.:PA 05 18580

  • CAS :

    143016-67-5

  • Molecular Formula : C8H10Cl2N2O2

  • Molecular Weight : 237.08

PA 05 18600

2-(Mercaptomethyl)-4-methoxy-1-(5-methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethylpyridin-1-ium Chloride

2-(Mercaptomethyl)-4-methoxy-1-(5-methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethylpyridin-1-ium Chloride


  • Catalogue No.:PA 05 18600

  • CAS :

    NA

  • Molecular Formula : C17H20ClN3O2S

  • Molecular Weight : 365.88

PA STI 037810

Esomeprazole-d3 Sodium Salt

Esomeprazole-d3 Sodium Salt


  • Catalogue No.:PA STI 037810

  • CAS :

    NA

  • Molecular Formula : C17H15D3N3NaO3S

  • Molecular Weight : 370.42

PA STI 037811

Esomeprazole-D6

Esomeprazole-D6


  • Catalogue No.:PA STI 037811

  • CAS :

    922800-06-4

  • Molecular Formula : C17H13D6N3O3S

  • Molecular Weight : 351.45

PA STI 037812

Esomeprazole-d3 Potassium Salt

Esomeprazole-d3 Potassium Salt


  • Catalogue No.:PA STI 037812

  • CAS :

    NA

  • Molecular Formula : C17H15D3KN3O3S

  • Molecular Weight : 386.52

PA 05 18610

12-Mercapto-8-methoxy-1,3-dimethylbenzo[4',5']imidazo[2',1':2,3]imidazo[1,5-a]pyridin-2-ol

12-Mercapto-8-methoxy-1,3-dimethylbenzo[4',5']imidazo[2',1':2,3]imidazo[1,5-a]pyridin-2-ol


  • Catalogue No.:PA 05 18610

  • CAS :

    2748245-58-9

  • Molecular Formula : C16H15N3O2S

  • Molecular Weight : 313.38

PA 05 18620

2-Chloromethyl-4-methoxy-3,5-dimethylpyridine 1-Oxide

2-Chloromethyl-4-methoxy-3,5-dimethylpyridine 1-Oxide


  • Catalogue No.:PA 05 18620

  • CAS :

    848694-10-0

  • Molecular Formula : C9H12ClNO2

  • Molecular Weight : 201.65

PA 05 18630

Lithium 1-(6-methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylate

Lithium 1-(6-methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylate


  • Catalogue No.:PA 05 18630

  • CAS :

    NA

  • Molecular Formula : C16H14LiN3O4

  • Molecular Weight : 319.25

PA IPIPRS 52 11

Esomeprazole Magnesium Trihydrate (IPRS/52/11)-from IPC


  • Catalogue No.:PA IPIPRS 52 11

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

PA EPY0001028

Esomeprazole magnesium trihydrate (Y0001028)

Esomeprazole magnesium trihydrate (Y0001028)


  • Catalogue No.:PA EPY0001028

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA EPY0001660

Esomeprazole magnesium dihydrate (Y0001660)

Esomeprazole magnesium dihydrate (Y0001660)


  • Catalogue No.:PA EPY0001660

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA USP1249789

Esomeprazole Magnesium (1249789)

Esomeprazole Magnesium (1249789)


  • Catalogue No.:PA USP1249789

  • CAS :

    217087-09-7

  • Molecular Formula : NA

  • Molecular Weight : NA

PA USP1249803

Esomeprazole Strontium (1249803)

Esomeprazole Strontium (1249803)


  • Catalogue No.:PA USP1249803

  • CAS :

    934714-36-0

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 32 02510

Magnesium (R)-5-methoxy-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)benzo[d]imidazol-1-ide

Magnesium (R)-5-methoxy-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)benzo[d]imidazol-1-ide


  • Catalogue No.:PA 32 02510

  • CAS :

    NA

  • Molecular Formula : C34H36MgN6O6S2

  • Molecular Weight : 713.12

PA 05 0181000

5-Methoxy-2-((2,3,5-trimethylpyridin-4-yl)oxy)-1H-benzo[d]imidazole

5-Methoxy-2-((2,3,5-trimethylpyridin-4-yl)oxy)-1H-benzo[d]imidazole


  • Catalogue No.:PA 05 0181000

  • CAS :

    NA

  • Molecular Formula : C16H17N3O2

  • Molecular Weight : 283.33

PA 05 0181001

1-(5-Methoxy-1H-benzo[d]imidazol-2-yl)-2,3,5-trimethylpyridin-4(1H)-one

1-(5-Methoxy-1H-benzo[d]imidazol-2-yl)-2,3,5-trimethylpyridin-4(1H)-one


  • Catalogue No.:PA 05 0181001

  • CAS :

    2512216-37-2

  • Molecular Formula : C16H17N3O2

  • Molecular Weight : 283.33

PA 05 0171000

2-(((4-Methoxy-3,5-dimethylpyridin-2-yl)methyl)thio)-1H-benzo[d]imidazole

2-(((4-Methoxy-3,5-dimethylpyridin-2-yl)methyl)thio)-1H-benzo[d]imidazole


  • Catalogue No.:PA 05 0171000

  • CAS :

    73590-87-1

  • Molecular Formula : C16H17N3OS

  • Molecular Weight : 299.39

PA 32 0021000

10-Camphorsulfonic acid ethyl ester

10-Camphorsulfonic acid ethyl ester


  • Catalogue No.:PA 32 0021000

  • CAS :

    108481-13-6

  • Molecular Formula : C12H20O4S

  • Molecular Weight : 260.35

PA 05 0171001

2-(((6-Methoxy-1H-benzo[d]imidazol-2-yl)sulfinyl)methyl)-3,5-dimethylpyridin-4(1H)-one

2-(((6-Methoxy-1H-benzo[d]imidazol-2-yl)sulfinyl)methyl)-3,5-dimethylpyridin-4(1H)-one


  • Catalogue No.:PA 05 0171001

  • CAS :

    2362529-32-4

  • Molecular Formula : C16H17N3O3S

  • Molecular Weight : 331.39

PA 05 0171002

5-Methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)thio)-1H-benzo[d]imidazole

5-Methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)thio)-1H-benzo[d]imidazole


  • Catalogue No.:PA 05 0171002

  • CAS :

    1346600-29-0

  • Molecular Formula : C26H30N4O3S

  • Molecular Weight : 478.61

PA 05 0171003

6-Methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfonyl)-1H-benzo[d]imidazole

6-Methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfonyl)-1H-benzo[d]imidazole


  • Catalogue No.:PA 05 0171003

  • CAS :

    2101206-41-9

  • Molecular Formula : C26H30N4O5S

  • Molecular Weight : 510.61

PA 05 0171004

2-(Chloromethyl)-3,5-dimethylpyridin-4-ol hydrochloride

2-(Chloromethyl)-3,5-dimethylpyridin-4-ol hydrochloride


  • Catalogue No.:PA 05 0171004

  • CAS :

    220770-99-0

  • Molecular Formula : C8H11Cl2NO

  • Molecular Weight : 208.08

PA 05 0171005

5-Methoxybenzo[d]oxazole-2-thiol

5-Methoxybenzo[d]oxazole-2-thiol


  • Catalogue No.:PA 05 0171005

  • CAS :

    49559-83-3

  • Molecular Formula : C8H7NO2S

  • Molecular Weight : 181.21

PA 05 0171006

6-Methoxy-1H-benzo[d]imidazole-2-sulfinic acid

6-Methoxy-1H-benzo[d]imidazole-2-sulfinic acid


  • Catalogue No.:PA 05 0171006

  • CAS :

    1080689-87-7

  • Molecular Formula : C8H8N2O3S

  • Molecular Weight : 212.22

PA 05 0171008

6-methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole

6-methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole


  • Catalogue No.:PA 05 0171008

  • CAS :

    2101206-66-8

  • Molecular Formula : C26H30N4O4S

  • Molecular Weight : 494.61

PA 05 0171009

5-Methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfonyl)-1H-benzo[d]imidazole

5-Methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfonyl)-1H-benzo[d]imidazole


  • Catalogue No.:PA 05 0171009

  • CAS :

    1346599-74-3

  • Molecular Formula : C26H30N4O5S

  • Molecular Weight : 510.61

PA 05 0171010

6-Methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfonyl)-1H-benzo[d]imidazole

6-Methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfonyl)-1H-benzo[d]imidazole


  • Catalogue No.:PA 05 0171010

  • CAS :

    2101206-41-9

  • Molecular Formula : C26H30N4O5S

  • Molecular Weight : 510.61

PA 05 0171011

(S)-(4-Methoxy-6-(((6-(methoxymethyl)-1H-benzo[d]imidazol-2-yl)sulfinyl)methyl)-5-methylpyridin-3-yl)methanol

(S)-(4-Methoxy-6-(((6-(methoxymethyl)-1H-benzo[d]imidazol-2-yl)sulfinyl)methyl)-5-methylpyridin-3-yl)methanol


  • Catalogue No.:PA 05 0171011

  • CAS :

    19648-27-7

  • Molecular Formula : C18H21N3O4S

  • Molecular Weight : 375.44

PA 05 0171012

(S)-2-(((4-Methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazol-6-ol

(S)-2-(((4-Methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazol-6-ol


  • Catalogue No.:PA 05 0171012

  • CAS :

    358675-51-1

  • Molecular Formula : C16H17N3O3S

  • Molecular Weight : 331.39

PA 05 0171013

2-(hydroxymethyl)-3,5-dimethylpyridin-4-ol

2-(hydroxymethyl)-3,5-dimethylpyridin-4-ol


  • Catalogue No.:PA 05 0171013

  • CAS :

    727375-13-5

  • Molecular Formula : C8H11NO2

  • Molecular Weight : 153.18

PA 05 0171014

2-(((3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole

2-(((3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole


  • Catalogue No.:PA 05 0171014

  • CAS :

    704910-88-3

  • Molecular Formula : C15H15N3OS

  • Molecular Weight : 285.37

PA 05 0171015

(3,5-Dimethylpyridin-2-yl)methyl acetate

(3,5-Dimethylpyridin-2-yl)methyl acetate


  • Catalogue No.:PA 05 0171015

  • CAS :

    206990-64-9

  • Molecular Formula : C10H13NO2

  • Molecular Weight : 179.22

PA 05 0171016

(3,5-Dimethylpyridin-2-yl)methanol

(3,5-Dimethylpyridin-2-yl)methanol


  • Catalogue No.:PA 05 0171016

  • CAS :

    202932-05-6

  • Molecular Formula : C8H11NO

  • Molecular Weight : 137.18

PA 05 0171017

(3,5-Dimethyl-4-nitropyridin-2-yl)methanol

(3,5-Dimethyl-4-nitropyridin-2-yl)methanol


  • Catalogue No.:PA 05 0171017

  • CAS :

    149082-03-1

  • Molecular Formula : C8H10N2O3

  • Molecular Weight : 182.18

PA 05 0171018

2-(Hydroxymethyl)-4-methoxy-3,5-dimethylpyridine 1-oxide

2-(Hydroxymethyl)-4-methoxy-3,5-dimethylpyridine 1-oxide


  • Catalogue No.:PA 05 0171018

  • CAS :

    287118-45-0

  • Molecular Formula : C9H13NO3

  • Molecular Weight : 183.21

PA 05 0171019

4-Methoxy-3,5-dimethylpicolinaldehyde

4-Methoxy-3,5-dimethylpicolinaldehyde


  • Catalogue No.:PA 05 0171019

  • CAS :

    110464-72-7

  • Molecular Formula : C9H11NO2

  • Molecular Weight : 165.19

PA 05 0171020

(S)-6-Methoxy-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1-methyl-1H-benzo[d]imidazole

(S)-6-Methoxy-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1-methyl-1H-benzo[d]imidazole


  • Catalogue No.:PA 05 0171020

  • CAS :

    1346240-11-6

  • Molecular Formula : C18H21N3O3S

  • Molecular Weight : 359.44

PA 05 0171021

N-Nitroso Esomeprazol

N-Nitroso Esomeprazol


  • Catalogue No.:PA 05 0171021

  • CAS :

    NA

  • Molecular Formula : C16H16N4O3S

  • Molecular Weight : 344.39

PA 05 0171023

1-(6-Methoxy-1H-benzo[d]imidazol-2-yl)-2,3,5-trimethylpyridin-4(1H)-one

1-(6-Methoxy-1H-benzo[d]imidazol-2-yl)-2,3,5-trimethylpyridin-4(1H)-one


  • Catalogue No.:PA 05 0171023

  • CAS :

    2512216-37-2

  • Molecular Formula : C16H17N3O2

  • Molecular Weight : 283.33

PA 05 0171022

(S)-2-(((5-Methoxy-1H-benzo[d]imidazol-2-yl)sulfinyl)methyl)-3,5-dimethylpyridin-4(1H)-one

(S)-2-(((5-Methoxy-1H-benzo[d]imidazol-2-yl)sulfinyl)methyl)-3,5-dimethylpyridin-4(1H)-one


  • Catalogue No.:PA 05 0171022

  • CAS :

    NA

  • Molecular Formula : C16H17N3O3S

  • Molecular Weight : 331.39

PA 05 0171024

4-Methoxy-1,3-dihydro-2H-benzo[d]imidazole-2-thione

4-Methoxy-1,3-dihydro-2H-benzo[d]imidazole-2-thione


  • Catalogue No.:PA 05 0171024

  • CAS :

    149367-83-9

  • Molecular Formula : C8H8N2OS

  • Molecular Weight : 180.23

PA IPRS 05 16

Esomeprazole Magnesium Trihydrate (IPRS/05/16) - from IPC

Esomeprazole Magnesium Trihydrate (IPRS/05/16) - from IPC


  • Catalogue No.:PA IPRS 05 16

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 05 0171025

6-Methoxy-4-nitrobenzo[d]thiazole-2-thiol

6-Methoxy-4-nitrobenzo[d]thiazole-2-thiol


  • Catalogue No.:PA 05 0171025

  • CAS :

    854085-70-4

  • Molecular Formula : C8H6N2O3S2

  • Molecular Weight : 242.27