Omeprazole

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Omeprazole API Reference standards and its EP Impurities, USP Impurities, non pharmacopeial Impurities, listed below & also offered custom synthesis for unknown Impurities. If require any contact info@drjcrbio.com, sales@drjcrbio.com

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    Product Name : Omeprazole N-Methyl 5-Methoxy Analog;89352-76-1

    Code: JCOMZ-22
    CAS:89352-76-1
    Chemical Formula: C18H21N3O3S
    Molecular Weight: 359.44
    Category: Omeprazole Reference Standards/Omeprazole API Drug Metabolites/Omeprazole EP Impurities/Omeprazole USP Impurities
    Literature:
    Application:  Omeprazole N-Methyl 5-Methoxy Analog;89352-76-1 is useful as reference Impurity standard.
    Omeprazole N-Methyl 5-Methoxy Analog;89352-76-1
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    Product Name : 4-Methoxy-3,5-dimethylpyridine 1-Oxide

    Code: JCOMZ-21
    CAS: 91219-89-5
    Chemical Formula: C8H11NO2
    Molecular Weight: 153.18
    Category: Omeprazole Reference Standards/Omeprazole API Drug Metabolites/Omeprazole EP Impurities/Omeprazole USP Impurities
    Literature:
    Application:  4-Methoxy-3,5-dimethylpyridine 1-Oxide; 91219-89-5 is useful as reference Impurity standard.
    4-Methoxy-3,5-dimethylpyridine 1-Oxide
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    Product Name : Omeprazole impurity G ;Omeprazole BP Impurity G;Omeprazole USP RC G;Isomer of Omeprazole EP Impurity F & Omeprazole USP RC F;1,3-Dimethyl-9-methoxy-12-thioxopyrido[1′,2′:3,4]imidazo[1,2-a]benzimidazol-2(12H)-one |125656-83-9

    Code: JCOMZ-20
    CAS: 125656-83-9
    Chemical Formula:C16H13N3O2S
    Molecular Weight:311.36
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:  Omeprazole impurity G ;Omeprazole BP Impurity G;Omeprazole USP RC G;Isomer of Omeprazole EP Impurity F & Omeprazole USP RC F;1,3-Dimethyl-9-methoxy-12-thioxopyrido[1′,2′:3,4]imidazo[1,2-a]benzimidazol-2(12H)-one |125656-83-9 is useful as reference Impurity standard.
    Omeprazole impurity G ;Omeprazole BP Impurity G;Omeprazole USP RC G;Isomer of Omeprazole EP Impurity F & Omeprazole USP RC F;1,3-Dimethyl-9-methoxy-12-thioxopyrido[1′,2′:3,4]imidazo[1,2-a]benzimidazol-2(12H)-one |125656-83-9
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    Product Name : Omeprazole impurity F ;Omeprazole BP Impurity F;Omeprazole USP RC F;Isomer of Omeprazole EP Impurity G & Omeprazole USP RC G;1,3-Dimethyl-8-methoxy-12-thioxopyrido[1′,2′:3,4]imidazo[1,2-a]benzimidazol-2(12H)-one |125656-82-8

    Code: JCOMZ-19
    CAS: 125656-82-8
    Chemical Formula:C16H13N3O2S
    Molecular Weight:311.36
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:  Omeprazole impurity F ;Omeprazole BP Impurity F;Omeprazole USP RC F;Isomer of Omeprazole EP Impurity G & Omeprazole USP RC G;1,3-Dimethyl-8-methoxy-12-thioxopyrido[1′,2′:3,4]imidazo[1,2-a]benzimidazol-2(12H)-one |125656-82-8 is useful as reference Impurity standard.
    Omeprazole impurity F ;Omeprazole BP Impurity F;Omeprazole USP RC F;Isomer of Omeprazole EP Impurity G & Omeprazole USP RC G;1,3-Dimethyl-8-methoxy-12-thioxopyrido[1′,2′:3,4]imidazo[1,2-a]benzimidazol-2(12H)-one |125656-82-8
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    Product Name : Omeprazole 4-chloro analogue ;2-((4-Chloro-3,5-dimethylpyridin-2-yl)methylthio)-5-methoxy-1H-benzo[d]imidazole |220757-74-4

    Code: JCOMZ-18
    CAS: 220757-74-4
    Chemical Formula:C16H16ClN3OS
    Molecular Weight:333.34
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:  Omeprazole 4-chloro analogue ;2-((4-Chloro-3,5-dimethylpyridin-2-yl)methylthio)-5-methoxy-1H-benzo[d]imidazole |220757-74-4 is useful as reference Impurity standard.
    Omeprazole 4-chloro analogue ;2-((4-Chloro-3,5-dimethylpyridin-2-yl)methylthio)-5-methoxy-1H-benzo[d]imidazole |220757-74-4
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    Product Name : PEAK IDENTIFICATION CRS FOR OMEPRAZOLE

    Code: JCOMZ-17
    CAS: 
    Chemical Formula:
    Molecular Weight:
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:  PEAK IDENTIFICATION CRS FOR OMEPRAZOLE is useful as reference Impurity standard.
    PEAK IDENTIFICATION CRS FOR OMEPRAZOLE
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    Product Name : Omeprazole for peak identification CRS (containing Impurity-E)

    Code:  JCOMZ-16
    CAS: 
    Chemical Formula:
    Molecular Weight:
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:  Omeprazole for peak identification CRS (containing Impurity-E) is useful as reference Impurity standard.
    Omeprazole for peak identification CRS (containing Impurity-E)
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    Product Name : 3,5-dimethyl-4-nitropyridine 1-oxide ;3,5-Dimethyl-4-nitropyridine N-Oxide; 4-Nitro-3,5-dimethylpyridine 1-Oxide |14248-66-9

    Code: JCOMZ-15
    CAS: 14248-66-9
    Chemical Formula:C7H8N2O3
    Molecular Weight:168.15
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application:   3,5-dimethyl-4-nitropyridine 1-oxide ;3,5-Dimethyl-4-nitropyridine N-Oxide; 4-Nitro-3,5-dimethylpyridine 1-Oxide |14248-66-9is useful as reference Impurity standard.
    3,5-dimethyl-4-nitropyridine 1-oxide ;3,5-Dimethyl-4-nitropyridine N-Oxide; 4-Nitro-3,5-dimethylpyridine 1-Oxide |14248-66-9
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    Product Name : (3,5-DIMETHYL)-4-NITROPYRIDIN-2YL)METHANOL; (3,5-Dimethyl-4-nitropyridin-2-yl)methanol, | 149082-03-1

    Code: JCOMZ-14
    CAS: 149082-03-1
    Chemical Formula: C8H10N2O3
    Molecular Weight:  182.18
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: (3,5-DIMETHYL)-4-NITROPYRIDIN-2YL)METHANOL; (3,5-Dimethyl-4-nitropyridin-2-yl)methanol, | 149082-03-1is useful as reference Impurity standard.
    (3,5-DIMETHYL)-4-NITROPYRIDIN-2YL)METHANOL; (3,5-Dimethyl-4-nitropyridin-2-yl)methanol, | 149082-03-1
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    Product Name : Omeprazole impurity O; Omeprazole Impurity II; Esomeprazol impurity H; Omeprazole Hydrolysis Impurity; ; Omeprazole -Pyride Acid Sodium Salt; Omeprazole Pyridone Acid Sodium Salt ; 1-(5-Methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylic acid; 1227380-90-6 (acid)

    Code: JCOMZ-13
    CAS: 1227380-90-6 (acid)
    Chemical Formula: C16H15N3O4 (Acid)
    Molecular Weight: 313.31 (Acid)
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Omeprazole impurity O; Omeprazole Impurity II; Esomeprazol impurity H; Omeprazole Hydrolysis Impurity; ; Omeprazole -Pyride Acid; Omeprazole Pyridone Acid ; 1-(5-Methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylic acid sodium salt; 1227380-90-6 (acid) is useful as reference Impurity standard.
    Omeprazole impurity O; Omeprazole Impurity II; Esomeprazol impurity H; Omeprazole Hydrolysis Impurity; ; Omeprazole -Pyride Acid Sodium Salt; Omeprazole Pyridone Acid Sodium Salt ; 1-(5-Methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylic acid; 1227380-90-6 (acid)
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    Product Name : (R)-Omeprazole; Esomeprazole; (+)-Omeprazole; (R)-5-Methoxy-2-(((4-Methoxy-3,5-Dimethylpyridin-2-Yl)Methyl)Sulfinyl)-1H-Benzo[D]Imidazole; 6-methoxy-2-[(R)-(4-methoxy-3,5-dimethylpyridin-2-yl)methylsulfinyl]-1H-benzimidazole | 119141-89-8

    Code: JCOMZ-12
    CAS: 119141-89-8
    Chemical Formula: C17H19N3O3S
    Molecular Weight: 345.42
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: (R)-Omeprazole; Esomeprazole; (+)-Omeprazole; (R)-5-Methoxy-2-(((4-Methoxy-3,5-Dimethylpyridin-2-Yl)Methyl)Sulfinyl)-1H-Benzo[D]Imidazole; 6-methoxy-2-[(R)-(4-methoxy-3,5-dimethylpyridin-2-yl)methylsulfinyl]-1H-benzimidazole | 119141-89-8 is useful as reference Impurity standard.
    (R)-Omeprazole; Esomeprazole; (+)-Omeprazole; (R)-5-Methoxy-2-(((4-Methoxy-3,5-Dimethylpyridin-2-Yl)Methyl)Sulfinyl)-1H-Benzo[D]Imidazole; 6-methoxy-2-[(R)-(4-methoxy-3,5-dimethylpyridin-2-yl)methylsulfinyl]-1H-benzimidazole | 119141-89-8
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    Product Name : N-Methyl Omeprazole (Mixture of Isomers); 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1-methyl-1H-benzimidazole+6-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1-methyl-1H-benzimidazole;

    Code: JCOMZ-11
    CAS: 89352-76-1+ 784143-42-6
    Chemical Formula: C9H12ClNO
    Molecular Weight: 185.65
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: N-Methyl Omeprazole (Mixture of Isomers); 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1-methyl-1H-benzimidazole+6-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1-methyl-1H-benzimidazole is useful as reference Impurity standard.
    N-Methyl Omeprazole (Mixture of Isomers); 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1-methyl-1H-benzimidazole+6-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1-methyl-1H-benzimidazole;
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    Product Name : Omeprazole EP Impurity XI ; 2-Chloromethyl-3,5-dimethyl-4-methoxypyridine HCl |  86604-75-3

    Code: JCOMZ-10
    CAS:  86604-75-3
    Chemical Formula: C9H12ClNO
    Molecular Weight: 185.65
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Omeprazole EP Impurity XI ; 2-Chloromethyl-3,5-dimethyl-4-methoxypyridine HCl |  86604-75-3 is useful as reference Impurity standard.
    Omeprazole EP Impurity XI ; 2-Chloromethyl-3,5-dimethyl-4-methoxypyridine HCl |  86604-75-3
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    Product Name : Omeprazole BP Impurity I; Omeprazole Sulfone N-Oxide; Omeprazole USP RC; 5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphonyl]-1H-benzimidazole N-Oxide;6-methoxy-2-[(4-methoxy-3,5-dimethyl-1-oxidopyridin-1-ium-2-yl)methylsulfonyl]-1H-benzimidazole |  158812-85-2

    Code: JCOMZ-09
    CAS: 158812-85-2
    Chemical Formula: C17H19N3O5S
    Molecular Weight: 377.41
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Omeprazole BP Impurity I; Omeprazole Sulfone N-Oxide; Omeprazole USP RC; 5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphonyl]-1H-benzimidazole N-Oxide;6-methoxy-2-[(4-methoxy-3,5-dimethyl-1-oxidopyridin-1-ium-2-yl)methylsulfonyl]-1H-benzimidazole |  158812-85-2 is useful as reference Impurity standard.
    Omeprazole BP Impurity I; Omeprazole Sulfone N-Oxide; Omeprazole USP RC; 5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphonyl]-1H-benzimidazole N-Oxide;6-methoxy-2-[(4-methoxy-3,5-dimethyl-1-oxidopyridin-1-ium-2-yl)methylsulfonyl]-1H-benzimidazole |  158812-85-2
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    Product Name : Omeprazole EP Impurity H; 4-Desmethoxy-4-chloro Omeprazole; 2-[[(4-Chloro-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-5-methoxy-1H-benzimidazole; 2-[(4-chloro-3,5-dimethylpyridin-2-yl)methylsulfinyl]-6-methoxy-1H-benzimidazole; 863029-89-4

    Code: JCOMZ-08
    CAS: 863029-89-4
    Chemical Formula: C16H16ClN3O2S
    Molecular Weight: 349.84
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Omeprazole EP Impurity H; 4-Desmethoxy-4-chloro Omeprazole; 2-[[(4-Chloro-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-5-methoxy-1H-benzimidazole; 2-[(4-chloro-3,5-dimethylpyridin-2-yl)methylsulfinyl]-6-methoxy-1H-benzimidazole; 863029-89-4 is useful as reference Impurity standard.
    Omeprazole EP Impurity H; 4-Desmethoxy-4-chloro Omeprazole; 2-[[(4-Chloro-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-5-methoxy-1H-benzimidazole; 2-[(4-chloro-3,5-dimethylpyridin-2-yl)methylsulfinyl]-6-methoxy-1H-benzimidazole; 863029-89-4
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    Product Name : Omeprazole EP Impurity F & G; 8-methoxy-1,3-dimethyl-12-thioxobenzo[4′,5′]imidazo[2′,1′:2,3]imidazo[1,5-a]pyridin-2(12H)-one compound with9-methoxy-1,3-dimethyl-12-thioxobenzo[4′,5′]imidazo[2′,1′:2,3]imidazo[1,5-a]pyridin-2(12H)-one (1:1)

    Code: JCOMZ-07
    CAS: 125656-82-8/125656-83-9
    Chemical Formula: C16H13N3O2S
    Molecular Weight: 311.36
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Omeprazole EP Impurity F & G; 8-methoxy-1,3-dimethyl-12-thioxobenzo[4',5']imidazo[2',1':2,3]imidazo[1,5-a]pyridin-2(12H)-one compound with9-methoxy-1,3-dimethyl-12-thioxobenzo[4',5']imidazo[2',1':2,3]imidazo[1,5-a]pyridin-2(12H)-one (1:1) is useful as reference Impurity standard.
    Omeprazole EP Impurity F & G; 8-methoxy-1,3-dimethyl-12-thioxobenzo[4',5']imidazo[2',1':2,3]imidazo[1,5-a]pyridin-2(12H)-one compound with9-methoxy-1,3-dimethyl-12-thioxobenzo[4',5']imidazo[2',1':2,3]imidazo[1,5-a]pyridin-2(12H)-one (1:1)
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    Product Name : Omeprazole EP Impurity E; Omeprazole USP RC E; Esomeprazole EP Impurity E; Omeprazole N-Oxide ; 4-Methoxy-2-[[(RS)-(5-methoxy-1H-benzimidazol-2-yl)sulfinyl]methyl]-3,5-dimethylpyridine 1-oxide; 176219-04-8

    Code: JCOMZ-06
    CAS: 176219-04-8
    Chemical Formula: C17H19N3O4S
    Molecular Weight: 361.42
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Omeprazole EP Impurity E; Omeprazole USP RC E; Esomeprazole EP Impurity E; Omeprazole N-Oxide ; 4-Methoxy-2-[[(RS)-(5-methoxy-1H-benzimidazol-2-yl)sulfinyl]methyl]-3,5-dimethylpyridine 1-oxide; 176219-04-8 is useful as reference Impurity standard.
    Omeprazole EP Impurity E; Omeprazole USP RC E; Esomeprazole EP Impurity E; Omeprazole N-Oxide ; 4-Methoxy-2-[[(RS)-(5-methoxy-1H-benzimidazol-2-yl)sulfinyl]methyl]-3,5-dimethylpyridine 1-oxide; 176219-04-8
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    Product Name : Omeprazole EP Impurity D; Esomeprazole EP Impurity D ; Esomeprazole USP Related Compound A ; Omeprazole sulphone ; 5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphonyl]-1H-benzimidazole; 88546-55-8

    Code: JCOMZ-05
    CAS: 88546-55-8
    Chemical Formula: C17H19N3O4S
    Molecular Weight: 361.42
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Omeprazole EP Impurity D; Esomeprazole EP Impurity D ; Esomeprazole USP Related Compound A ; Omeprazole sulphone ; 5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphonyl]-1H-benzimidazole; 88546-55-8 is useful as reference Impurity standard.
    Omeprazole EP Impurity D; Esomeprazole EP Impurity D ; Esomeprazole USP Related Compound A ; Omeprazole sulphone ; 5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphonyl]-1H-benzimidazole; 88546-55-8
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    Product Name : Omeprazole EP Impurity C; Esomeprazole EP Impurity C; Omeprazole Sulfide ; Ufiprazole ; 5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphanyl]-1H-benzimidazole; 73590-85-9

    Code: JCOMZ-04
    CAS: 73590-85-9
    Chemical Formula: C17H19N3O2S
    Molecular Weight:329.42
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Omeprazole EP Impurity C; Esomeprazole EP Impurity C; Omeprazole Sulfide ; Ufiprazole ; 5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphanyl]-1H-benzimidazole; 73590-85-9 is useful as reference Impurity standard.
    Omeprazole EP Impurity C; Esomeprazole EP Impurity C; Omeprazole Sulfide ; Ufiprazole ; 5-Methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphanyl]-1H-benzimidazole; 73590-85-9
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    Product Name : Omeprazole EP Impurity B; Esomeprazole EP Impurity B; 4-Desmethoxy Omeprazole ; 2-[(RS)-[(3,5-dimethylpyridin-2-yl)methyl]sulphinyl]-5-methoxy-1H-benzimidazole; 110374-16-8

    Code: JCOMZ-03
    CAS: 110374-16-8
    Chemical Formula: C16H17N3O2S
    Molecular Weight: 315.39
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Omeprazole EP Impurity B; Esomeprazole EP Impurity B; 4-Desmethoxy Omeprazole ; 2-[(RS)-[(3,5-dimethylpyridin-2-yl)methyl]sulphinyl]-5-methoxy-1H-benzimidazole; 110374-16-8  is useful as reference Impurity standard.
    Omeprazole EP Impurity B; Esomeprazole EP Impurity B; 4-Desmethoxy Omeprazole ; 2-[(RS)-[(3,5-dimethylpyridin-2-yl)methyl]sulphinyl]-5-methoxy-1H-benzimidazole; 110374-16-8
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    Product Name : Omeprazole EP Impurity A Omeprazole BP Impurity A ; Omeprazole USP RC B ; Esomeprazole EP Impurity A; 5-Methoxy-1H-benzimidazole-2-thiol; 37052-78-1

    Code: JCOMZ-02
    CAS: 37052-78-1
    Chemical Formula: C8H8N2OS
    Molecular Weight: 180.23
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Omeprazole EP Impurity A Omeprazole BP Impurity A ; Omeprazole USP RC B ; Esomeprazole EP Impurity A; 5-Methoxy-1H-benzimidazole-2-thiol; 37052-78-1 is useful as reference Impurity standard.
    Omeprazole EP Impurity A Omeprazole BP Impurity A ; Omeprazole USP RC B ; Esomeprazole EP Impurity A; 5-Methoxy-1H-benzimidazole-2-thiol; 37052-78-1
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    Product Name : Omeprazole; 5-Methoxy-2-[(4-methoxy-3,5-dimethyl-pyridin-2-yl)methylsulfinyl]-3H-benzoimidazole; 73590-58-6

    Code: JCOMZ-01
    CAS: 73590-58-6
    Chemical Formula: C17H19N3O3S
    Molecular Weight: 345.42
    Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
    Literature:
    Application: Omeprazole; 5-Methoxy-2-[(4-methoxy-3,5-dimethyl-pyridin-2-yl)methylsulfinyl]-3H-benzoimidazole; 73590-58-6 is useful as reference Impurity standard.
    Omeprazole; 5-Methoxy-2-[(4-methoxy-3,5-dimethyl-pyridin-2-yl)methylsulfinyl]-3H-benzoimidazole; 73590-58-6
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