A selective and irreversible proton pump inhibitor, Omeprazole is used in the treatment of gastroesophageal reflux disease (GERD) and peptic ulcers.Omeprazole exists as a racemic mixture of R and S enantiomers.Reference standards of Omeprazole API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
Omeprazole
Catalogue No.:PA 15 05000
CAS :
Molecular Formula : C17H19N3O3S
Molecular Weight : 345.42
5-Methoxy-1H-benzimidazole-2-thiol
Catalogue No.:PA 15 05010
Molecular Formula : C8H8N2OS
Molecular Weight : 180.23
2-[(RS)-[(3,5-Dimethylpyridin-2- yl)methyl]sulphinyl]-5-methoxy-1H-benzimidazole
Catalogue No.:PA 15 05020
Molecular Formula : C16H17N3O2S
Molecular Weight : 315.39
Ufiprazole
Catalogue No.:PA 15 05030
Molecular Formula : C17H19N3O2S
Molecular Weight : 329.42
Omeprazole Sulphone
Catalogue No.:PA 15 05040
Molecular Formula : C17H19N3O4S
Molecular Weight : 361.42
4-Methoxy-2-[[(RS)-(5-methoxy-1H-benzimidazol-2-yl)sulphinyl]methyl]-3,5-dimethylpyridine 1-oxide
Catalogue No.:PA 15 05050
8-Methoxy-1,3-dimethyl-12- thioxopyrido[1′,2′:3,4]imidazo[1,2-a]benzimidazol-2(12H)- one
Catalogue No.:PA 15 05060
Molecular Formula : C16H13N3O2S
Molecular Weight : 311.36
9-Methoxy-1,3-dimethyl-12-thioxopyrido[1',2':3,4]imidazo[1,2-a]benzimidazol-2(12H)-one
Catalogue No.:PA 15 05070
2-[(RS)-[(4-Chloro-3,5-dimethylpyridin-2- yl)methyl]sulfinyl]-5-methoxy-1H-benzimidazole
Catalogue No.:PA 15 05080
Molecular Formula : C16H16ClN3O2S
Molecular Weight : 349.84
4-Methoxy-2-[[(5-methoxy-1H-benzimidazol-2-yl)sulphonyl]methyl]-3,5-dimethylpyridine 1-oxide
Catalogue No.:PA 15 05090
Molecular Formula : C17H19N3O5S
Molecular Weight : 377.41
5-Methoxy-2-[[(3,5-dimethylpyridin-2-yl)methyl]sulphanyl]-1H-benzimidazole
Catalogue No.:PA 15 05510
Molecular Formula : C16H17N3OS
Molecular Weight : 299.39
5-Methoxy-2-[[(4-chloro-3,5-dimethylpyridin-2-yl)methyl]sulphanyl]-1H-benzimidazole
Catalogue No.:PA 15 05520
Molecular Formula : C16H16ClN3OS
Molecular Weight : 333.84
5-Methoxy-1,3-dihydrobenzimidazol-2-one
Catalogue No.:PA 15 05530
Molecular Formula : C8H8N2O2
Molecular Weight : 164.16
2-[[(4-Methoxy-3,5-dimethylpyridin-2-yl)-methyl]sulphinyl]-1H-benzimidazole
Catalogue No.:PA 15 05540
N-Methyl Omeprazole (Mixture of isomers with the methylated nitrogens of imidazole)
Catalogue No.:PA 15 05550
Molecular Formula : C18H21N3O3S
Molecular Weight : 359.13
(R)-Omeprazole Sodium
Catalogue No.:PA 15 05560
Molecular Formula : C17H19N3NaO3S
Molecular Weight : 368.41
2-(Chloromethyl)-4-methoxy-3,5-dimethylpyridine Hydrochloride
Catalogue No.:PA 15 05570
Molecular Formula : C9H13Cl2NO
Molecular Weight : 222.11
1-(5-Methoxy-1H-benzimidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydro-2-pyridinecarboxylic Acid
Catalogue No.:PA 15 05580
Molecular Formula : C16H15N3O4
Molecular Weight : 313.31
6-(Chloromethyl)-3,5-dimethylpyridin-2-ol
Catalogue No.:PA 15 05590
Molecular Formula : C8H10ClNO
Molecular Weight : 171.62
5-O-Desmethyl Omeprazole
Catalogue No.:PA 15 05600
Molecular Formula : C16H17N3O3S
Molecular Weight : 331.39
Omeprazole N-Methyl 6-Methoxy Analog
Catalogue No.:PA 15 05610
Molecular Weight : 359.44
8(9)-Methoxy-1,3-dimethyl-12-thioxopyrido[1',2':3,4]imidazo[1,2-a]benzimidazol-2-(12H)-one (Mixture of Regioisomers)
Catalogue No.:PA 15 05620
2,3,5-Trimethyl-4-nitropyridine 1-oxide
Catalogue No.:PA 15 05630
Molecular Formula : C8H10N2O3
Molecular Weight : 182.18
2-Acetyloxymethyl-3,5-dimethyl-4-nitropyridine
Catalogue No.:PA 15 05640
Molecular Formula : C10H12N2O4
Molecular Weight : 224.21
5-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 15 05650
Molecular Formula : C26H30N4O4S
Molecular Weight : 494.61
2-(Chloromethyl)-6-methoxy-3,5-dimethylpyridine
Catalogue No.:PA 15 05660
Molecular Formula : C9H12ClNO
Molecular Weight : 185.65
4-Methoxy-3,5-dimethylpyridine 1-Oxide
Catalogue No.:PA 15 05670
Molecular Formula : C8H11NO2
Molecular Weight : 153.18
4-Hydroxy Omeprazole
Catalogue No.:PA 15 05690
2-(5-Methoxy-1H-benzo[d]imidazole-2-carbonothioyl)-3,5-dimethylpyridin-4(1H)-one
Catalogue No.:PA 15 05700
Molecular Formula : C16H15N3O2S
Molecular Weight : 313.37
Omeprazole N-Methyl 5-Methoxy Analog
Catalogue No.:PA 15 05710
2-((5-Methoxy-1H-benzo[d]imidazol-2-yl)methyl)-3,5-dimethylpyridin-4-ol
Catalogue No.:PA 15 05720
Molecular Formula : C16H17N3O2
Molecular Weight : 283.33
2,2'-(((4-Methoxy-3,5-dimethylpyridine-2,6-diyl)bis(methylene))bis(sulfanediyl))bis(5-methoxy-1H-benzo[d]imidazole)
Catalogue No.:PA 15 05730
Molecular Formula : C26H27N5O3S2
Molecular Weight : 521.65
Omeprazole Magnesium
Catalogue No.:PA 15 05740
Molecular Formula : C34H36MgN6O6S2
Molecular Weight : 713.12
N-Methyl Omeprazole-d3 (Mixture of isomers with the methylated nitrogens of imidazole)
Catalogue No.:PA STI 063050
Molecular Formula : C18H18D3N3O3S
Molecular Weight : 362.46
2,5-bis(Chloromethyl)-4-methoxy-d3-3-methylpyridine
Catalogue No.:PA STI 020230
Molecular Formula : C9H8D3Cl2NO
Molecular Weight : 223.11
4-Desmethoxy Omeprazole-d3
Catalogue No.:PA STI 027950
Molecular Formula : C16H14D3N3O2S
Molecular Weight : 318.41
4-Desmethoxy Omeprazole-d3 Sulfide
Catalogue No.:PA STI 027960
Molecular Formula : C16H14D3N3OS
Molecular Weight : 302.41
5-O-Desmethyl Omeprazole-d3
Catalogue No.:PA STI 028520
Molecular Formula : C16H14D3N3O3S
Molecular Weight : 334.41
5-O-Desmethyl Omeprazole-d3 Sulfide
Catalogue No.:PA STI 028550
5-Hydroxy Acetate Omeprazole-d3
Catalogue No.:PA STI 047150
Molecular Formula : C19H18D3N3O5S
Molecular Weight : 406.47
5-Hydroxy Omeprazole-(Pyridyl)-d3
Catalogue No.:PA STI 050160
Molecular Formula : C17H16D3N3O4S
Molecular Weight : 364.43
5-Hydroxy Omeprazole-d3 Sodium Salt
Catalogue No.:PA STI 050500
Molecular Formula : C17H15D3N3NaO4S
Molecular Weight : 386.42
Catalogue No.:PA STI 050510
N-(4-Methoxy-3,5-dimethyl-2-pyridinyl)methyl Omeprazole-d3
Catalogue No.:PA STI 059290
Molecular Formula : C26H27D3N4O4S
Molecular Weight : 497.62
N-(4-Methoxy-3,5-dimethyl-2-pyridinyl)methyl Omeprazole-d3 Sulfide
Catalogue No.:PA STI 059300
Molecular Formula : C26H27D3N4O3S
Molecular Weight : 481.62
N-(4-Methoxy-3,5-dimethyl-2-pyridinyl)methyl Omeprazole-d3 Sulfone
Catalogue No.:PA STI 059310
Molecular Formula : C26H27D3N4O5S
Molecular Weight : 513.62
Omeprazole-d3
Catalogue No.:PA STI 070170
Molecular Formula : C17H16D3N3O3S
Molecular Weight : 348.43
Omeprazole-4-methoxy-d3
Catalogue No.:PA STI 070180
Omeprazole-d3 Acid Disodium Salt
Catalogue No.:PA STI 070190
Molecular Formula : C17H12D3N3Na2O5S
Molecular Weight : 422.38
Omeprazole-d3 Sulfide
Catalogue No.:PA STI 070200
Molecular Formula : C17H16D3N3O2S
Molecular Weight : 332.44
Catalogue No.:PA STI 070210
Omeprazole-d3 Sulfone
Catalogue No.:PA STI 070220
Omeprazole Acid-d3 Methyl Ester Sulfide
Catalogue No.:PA STI 070230
Molecular Formula : C18H16D3N3O4S
Molecular Weight : 376.44
Omeprazole-13C,D3
Catalogue No.:PA STI 070231
Molecular Formula : C1613CH16D3N3O3S
Molecular Weight : 349.43
o-Toluoyl-5-hydroxy Omeprazole Sulfide-d3
Catalogue No.:PA STI 083820
Molecular Formula : C25H22D3N3O4S
Molecular Weight : 466.57
4-Methoxy-3,5-dimethyl-2-pyridinemethanol
Catalogue No.:PA 15 05750
Molecular Formula : C9H13NO2
Molecular Weight : 167.21
2-Hydroxymethyl-3,5-dimethyl-4-chloro Pyridine
Catalogue No.:PA 15 05760
4-Acetyloxy Omeprazole
Catalogue No.:PA 15 05770
Molecular Formula : C18H19N3O4S
Molecular Weight : 373.43
Catalogue No.:PA IPIPRS 146 14
Molecular Formula :
Molecular Weight : NA
Omeprazole (O0150000)
Catalogue No.:PA EPO0150000
Molecular Formula : NA
Omeprazole impurity D (O0151000)
Catalogue No.:PA EPO0151000
Omeprazole for peak identification (Y0001042)
Catalogue No.:PA EPY0001042
Omeprazole magnesium (Y0001043)
Catalogue No.:PA EPY0001043
R-Omeprazole (5-Methoxy-2-[(R)-[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]sulfinyl]-1H-benzimidazole (1478479)
Catalogue No.:PA USP1478479
Omeprazole Related Compound B (5-Methoxy-1H-benzimidazol-2-thiol) (1478480)
Catalogue No.:PA USP1478480
Omeprazole Related Compound F and G Mixture (1478491)
Catalogue No.:PA USP1478491
Omeprazole (1478505)
Catalogue No.:PA USP1478505
Omeprazole Related Compound A (5-methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfonyl]-1 (1478516)
Catalogue No.:PA USP1478516
Omeprazole Related Compound E (4-Methoxy-2-[[(RS)-(5-methoxy-1H-benzimidazol-2-yl)sulfinyl]methyl]- (1478527)
Catalogue No.:PA USP1478527
Omeprazole Magnesium (1478549)
Catalogue No.:PA USP1478549
Omeprazole Related Compound I (4-Methoxy-2-[[(5-methoxy-1H-benzimidazol-2-yl)sulfonyl]methyl]-3,5-d (1478561)
Catalogue No.:PA USP1478561
omeprazole (765RB)
Catalogue No.:PA BP765RB
Omeprazole N1-Methyl 5-Methoxy Thiol
Catalogue No.:PA 15 05780
Molecular Formula : C9H10N2OS
Molecular Weight : 194.25
Omeprazole N1-Methyl 6-Methoxy Thiol
Catalogue No.:PA 15 05790
2-(((5-Methoxy-1H-benzo[d]imidazol-2-yl)sulfinyl)methyl)-3,5-dimethylpyridin-4(1H)-one
Catalogue No.:PA 15 05800
o-Toluoyl-5-hydroxy Omeprazole
Catalogue No.:PA 15 05810
Molecular Formula : C25H25N3O5S
Molecular Weight : 479.55
o-Toluoyl-5-hydroxy Omeprazole Sulfide
Catalogue No.:PA 15 05820
Molecular Formula : C25H25N3O4S
Molecular Weight : 463.55
2,3,5-Trimethylpyridine
Catalogue No.:PA 15 05830
Molecular Formula : C8H11N
Molecular Weight : 121.18
Omeprazole Acid Disodium Salt
Catalogue No.:PA 15 05840
Molecular Formula : C17H16N3NaO5S
Molecular Weight : 397.38
2-(((6-Methoxy-1H-benzo[d]imidazol-2-yl)thio)methyl)-3,5-dimethylpyridin-4-ol
Catalogue No.:PAI 15 009010
2-(((4-((tert-Butyldimethylsilyl)oxy)-3,5-dimethylpyridin-2-yl)methyl)thio)-6-methoxy-1H-benzo[d]imidazole
Catalogue No.:PAI 15 009020
Molecular Formula : C22H31N3O2SSi
Molecular Weight : 429.65
2-(((4-((tert-Butyldimethylsilyl)oxy)-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-6-methoxy-1H-benzo[d]imidazole
Catalogue No.:PAI 15 009030
Molecular Formula : C22H31N3O3SSi
Molecular Weight : 445.65
1-(5-Methoxy-1H-benzo[d]imidazole-2-carbonothioyl)-3,5-dimethylpyridin-4(1H)-one
Catalogue No.:PA 15 05850
Molecular Weight : 313.38
5-Hydroxy Omeprazole
Catalogue No.:PA 15 0051000
4-Methoxy-2-(((5-methoxy-1H-benzo[d]imidazol-2-yl)thio)methyl)-3,5-dimethylpyridine 1-oxide
Catalogue No.:PAI 15 009031
2-(((5-Hydroxy-1H-benzo[d]imidazol-2-yl)sulfinyl)methyl)-3,5-dimethylpyridin-4(1H)-one
Catalogue No.:PA 15 0051001
Molecular Formula : C15H15N3O3S
Molecular Weight : 317.36
5-Benzyloxy omeprazole
Catalogue No.:PA 15 0051002
Molecular Formula : C23H23N3O3S
Molecular Weight : 421.52
4-Methoxy-6-[[(5-methoxy-1H-benzimidazol-2-yl)thio]methyl]-5-methyl-3-pyridinemethanol
Catalogue No.:PA 15 0051003
5-O-Desmethyl Omeprazole Sulfide
Catalogue No.:PA 15 0051004
4-Desmethoxy-4-nitro Omeprazole
Catalogue No.:PA 15 0051005
Molecular Formula : C16H16N4O4S
Molecular Weight : 360.39
1-(5-Methoxy-1-(1-(5-methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carbonyl)-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylic Acid
Catalogue No.:PA 15 0051006
Molecular Formula : C32H28N6O7
Molecular Weight : 608.61
4-Desmethoxy-4-nitro omeprazole sulfide
Catalogue No.:PA 15 0051007
Molecular Formula : C16H16N4O3S
Molecular Weight : 344.39
4-Desmethoxy-4-nitro omeprazole Sulfone
Catalogue No.:PA 15 0051008
Molecular Formula : C16H16N4O5S
Molecular Weight : 376.39
6-Chloromethyl-4-methoxy-5-methyl-3-pyridylmethanol o-toluate hydrochloride
Catalogue No.:PA 15 0051015
Molecular Formula : C17H19Cl2NO3
Molecular Weight : 356.24
5-Acetoxymethyl-2,3-dimethyl-4-nitropyridine-1-oxide
Catalogue No.:PA 15 0051010
Molecular Formula : C10H12N2O5
Molecular Weight : 240.22
2,5-Dihydroxymethyl-4-methoxy-3-methylpyridine
Catalogue No.:PA 15 0051011
Molecular Formula : C9H13NO3
Molecular Weight : 183.21
2-Acetoxymethyl-5-hydroxymethyl-4-methoxy-3-methylpyridine
Catalogue No.:PA 15 0051012
Molecular Formula : C11H15NO4
Molecular Weight : 225.24
Omeprazole acid methyl ester sulfide
Catalogue No.:PA 15 0051013
Omeprazole acid methyl ester
Catalogue No.:PA 15 0051014
Molecular Formula : C18H19N3O5S
Molecular Weight : 389.43
2-(Chloromethyl)-4-methoxy-3,5-dimethylpyridine
Catalogue No.:PA 15 0051016
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