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.
Esomeprazole
Catalogue No.:PA 05 17000
CAS :
Molecular Formula : C17H19N3O3S
Molecular Weight : 345.42
5-Methoxy-2-mercaptobenzimidazole
Catalogue No.:PA 05 18010
Molecular Formula : C8H8N2OS
Molecular Weight : 180.23
4-Desmethoxy Omeprazole
Catalogue No.:PA 05 18020
Molecular Formula : C16H17N3O2S
Molecular Weight : 315.39
Omeprazole Sulfide
Catalogue No.:PA 05 18030
Molecular Formula : C17H19N3O2S
Molecular Weight : 329.42
Omeprazole Sulphone
Catalogue No.:PA 05 18040
Molecular Formula : C17H19N3O4S
Molecular Weight : 361.42
Omeprazole N-Oxide
Catalogue No.:PA 05 18050
4-Desmethoxy-4-chloro Omeprazole
Catalogue No.:PA 05 18080
Molecular Formula : C16H16ClN3O2S
Molecular Weight : 349.84
Omeprazole Sulfone N-Oxide
Catalogue No.:PA 05 18090
Molecular Formula : C17H19N3O5S
Molecular Weight : 377.41
Esomeprazole Potassium
Catalogue No.:PA 05 18510
Molecular Formula : C17H19KN3O3S
Molecular Weight : 384.51
Esomeprazole Sodium
Catalogue No.:PA 05 18520
Molecular Formula : C17H18N3NaO3S
Molecular Weight : 367.4
2-(5-Methoxy-1H-benzoimidazole-2-ylmethyl)-3,5-dimethyl-1H-pyridin-4-one
Catalogue No.:PA 05 18530
Molecular Formula : C16H17N3O2
Molecular Weight : 283.33
4-Hydroxy Omeprazole Sulfide
Catalogue No.:PA 05 18540
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
Molecular Formula : C16H16ClN3O4
Molecular Weight : 349.77
3,5-Dimethyl-4-nitropyridine 1-Oxide
Catalogue No.:PA 05 18560
Molecular Formula : C7H8N2O3
Molecular Weight : 168.15
2-(Chloromethyl)-3,5-dimethylpyridine Hydrochloride
Catalogue No.:PA 05 18570
Molecular Formula : C8H11Cl2N
Molecular Weight : 192.09
2-(Chloromethyl)-3,5-dimethyl-4-nitropyridine Hydrochloride
Catalogue No.:PA 05 18580
Molecular Formula : C8H10Cl2N2O2
Molecular Weight : 237.08
2-(Mercaptomethyl)-4-methoxy-1-(5-methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethylpyridin-1-ium Chloride
Catalogue No.:PA 05 18600
Molecular Formula : C17H20ClN3O2S
Molecular Weight : 365.88
Esomeprazole-d3 Sodium Salt
Catalogue No.:PA STI 037810
Molecular Formula : C17H15D3N3NaO3S
Molecular Weight : 370.42
Esomeprazole-D6
Catalogue No.:PA STI 037811
Molecular Formula : C17H13D6N3O3S
Molecular Weight : 351.45
Esomeprazole-d3 Potassium Salt
Catalogue No.:PA STI 037812
Molecular Formula : C17H15D3KN3O3S
Molecular Weight : 386.52
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
Molecular Formula : C16H15N3O2S
Molecular Weight : 313.38
2-Chloromethyl-4-methoxy-3,5-dimethylpyridine 1-Oxide
Catalogue No.:PA 05 18620
Molecular Formula : C9H12ClNO2
Molecular Weight : 201.65
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
Molecular Formula : C16H14LiN3O4
Molecular Weight : 319.25
Catalogue No.:PA IPIPRS 52 11
Molecular Formula :
Molecular Weight : NA
Esomeprazole magnesium trihydrate (Y0001028)
Catalogue No.:PA EPY0001028
Molecular Formula : NA
Esomeprazole magnesium dihydrate (Y0001660)
Catalogue No.:PA EPY0001660
Esomeprazole Magnesium (1249789)
Catalogue No.:PA USP1249789
Esomeprazole Strontium (1249803)
Catalogue No.:PA USP1249803
Magnesium (R)-5-methoxy-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)benzo[d]imidazol-1-ide
Catalogue No.:PA 32 02510
Molecular Formula : C34H36MgN6O6S2
Molecular Weight : 713.12
5-Methoxy-2-((2,3,5-trimethylpyridin-4-yl)oxy)-1H-benzo[d]imidazole
Catalogue No.:PA 05 0181000
1-(5-Methoxy-1H-benzo[d]imidazol-2-yl)-2,3,5-trimethylpyridin-4(1H)-one
Catalogue No.:PA 05 0181001
2-(((4-Methoxy-3,5-dimethylpyridin-2-yl)methyl)thio)-1H-benzo[d]imidazole
Catalogue No.:PA 05 0171000
Molecular Formula : C16H17N3OS
Molecular Weight : 299.39
10-Camphorsulfonic acid ethyl ester
Catalogue No.:PA 32 0021000
Molecular Formula : C12H20O4S
Molecular Weight : 260.35
2-(((6-Methoxy-1H-benzo[d]imidazol-2-yl)sulfinyl)methyl)-3,5-dimethylpyridin-4(1H)-one
Catalogue No.:PA 05 0171001
Molecular Formula : C16H17N3O3S
Molecular Weight : 331.39
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
Molecular Formula : C26H30N4O3S
Molecular Weight : 478.61
2-(Chloromethyl)-3,5-dimethylpyridin-4-ol hydrochloride
Catalogue No.:PA 05 0171004
Molecular Formula : C8H11Cl2NO
Molecular Weight : 208.08
5-Methoxybenzo[d]oxazole-2-thiol
Catalogue No.:PA 05 0171005
Molecular Formula : C8H7NO2S
Molecular Weight : 181.21
6-Methoxy-1H-benzo[d]imidazole-2-sulfinic acid
Catalogue No.:PA 05 0171006
Molecular Formula : C8H8N2O3S
Molecular Weight : 212.22
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
Molecular Formula : C26H30N4O4S
Molecular Weight : 494.61
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
Molecular Formula : C26H30N4O5S
Molecular Weight : 510.61
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
(S)-(4-Methoxy-6-(((6-(methoxymethyl)-1H-benzo[d]imidazol-2-yl)sulfinyl)methyl)-5-methylpyridin-3-yl)methanol
Catalogue No.:PA 05 0171011
Molecular Formula : C18H21N3O4S
Molecular Weight : 375.44
(S)-2-(((4-Methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazol-6-ol
Catalogue No.:PA 05 0171012
2-(hydroxymethyl)-3,5-dimethylpyridin-4-ol
Catalogue No.:PA 05 0171013
Molecular Formula : C8H11NO2
Molecular Weight : 153.18
2-(((3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole
Catalogue No.:PA 05 0171014
Molecular Formula : C15H15N3OS
Molecular Weight : 285.37
(3,5-Dimethylpyridin-2-yl)methyl acetate
Catalogue No.:PA 05 0171015
Molecular Formula : C10H13NO2
Molecular Weight : 179.22
(3,5-Dimethylpyridin-2-yl)methanol
Catalogue No.:PA 05 0171016
Molecular Formula : C8H11NO
Molecular Weight : 137.18
(3,5-Dimethyl-4-nitropyridin-2-yl)methanol
Catalogue No.:PA 05 0171017
Molecular Formula : C8H10N2O3
Molecular Weight : 182.18
2-(Hydroxymethyl)-4-methoxy-3,5-dimethylpyridine 1-oxide
Catalogue No.:PA 05 0171018
Molecular Formula : C9H13NO3
Molecular Weight : 183.21
4-Methoxy-3,5-dimethylpicolinaldehyde
Catalogue No.:PA 05 0171019
Molecular Formula : C9H11NO2
Molecular Weight : 165.19
(S)-6-Methoxy-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1-methyl-1H-benzo[d]imidazole
Catalogue No.:PA 05 0171020
Molecular Formula : C18H21N3O3S
Molecular Weight : 359.44
N-Nitroso Esomeprazol
Catalogue No.:PA 05 0171021
Molecular Formula : C16H16N4O3S
Molecular Weight : 344.39
1-(6-Methoxy-1H-benzo[d]imidazol-2-yl)-2,3,5-trimethylpyridin-4(1H)-one
Catalogue No.:PA 05 0171023
(S)-2-(((5-Methoxy-1H-benzo[d]imidazol-2-yl)sulfinyl)methyl)-3,5-dimethylpyridin-4(1H)-one
Catalogue No.:PA 05 0171022
4-Methoxy-1,3-dihydro-2H-benzo[d]imidazole-2-thione
Catalogue No.:PA 05 0171024
Esomeprazole Magnesium Trihydrate (IPRS/05/16) - from IPC
Catalogue No.:PA IPRS 05 16
6-Methoxy-4-nitrobenzo[d]thiazole-2-thiol
Catalogue No.:PA 05 0171025
Molecular Formula : C8H6N2O3S2
Molecular Weight : 242.27
(S)-2-(((3,5-Dimethylpyridin-2-yl)methyl)sulfinyl)-5-methoxy-1H-benzo[d]imidazole
Catalogue No.:PA 05 0171026
(S)-2-(((3,5-Dimethylpyridin-2-yl)methyl)sulfinyl)-5-methoxy-1-nitroso-1H-benzo[d]imidazole
Catalogue No.:PA 05 0171027
5-Methoxy-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)thio)-1-nitroso-1H-benzo[d]imidazole
Catalogue No.:PA 05 0171028
Molecular Formula : C17H18N4O3S
Molecular Weight : 358.42
1,4-Dimethoxy-3,5-dimethylpyridin-1-ium Methyl Sulfate
Catalogue No.:PA 05 0171029
Molecular Formula : C10H17NO6S
Molecular Weight : 279.31
(S)-Binol
Catalogue No.:PA 05 0171030
Molecular Formula : C20H14O2
Molecular Weight : 286.33
2-(((3,5-Dimethyl-4-nitropyridin-2-yl)methyl)sulfonyl)-5-methoxy-1H-benzo[d]imidazole
Catalogue No.:PA 05 0171031
Molecular Formula : C16H16N4O5S
Molecular Weight : 376.39
Esomeprazole-D3
Catalogue No.:PA STI 089663
Molecular Formula : C17H16D3N3O3S
Molecular Weight : 348.44
(1-(5-Methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridin-2-yl)methanesulfinic Acid
Catalogue No.:PA 05 0171032
Molecular Formula : C16H17N3O4S
Molecular Weight : 347.39
Esomeprazole Sodium (Y0002075)
Catalogue No.:PA EP Y0002075
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