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496100

Omeprazole

A cell-permeable pyridyl methylsulfinyl benzimidazole compound that acts as selective proton pump inhibitor.

Synonym(s):

Omeprazole, H 168/68, 5-Methoxy-2[(4-methoxy-3,5-dimethyl-2-pyridyl)methylsulfinyl]-1H-benzimidazole

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About This Item

Empirical Formula (Hill Notation):
C17H19N3O3S
CAS Number:
73590-58-6
Molecular Weight:
345.42
UNSPSC Code:
12352200
NACRES:
NA.77
MDL number:
MFCD00083192
Assay:
≥94% (HPLC)
Form:
solid
Quality level:
100
Storage condition:
OK to freeze, protect from light
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Quality Level

100

description

Merck USA index - 14, 6845

assay

≥94% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze, protect from light

color

tan to off-white

solubility

DMSO: 25 mg/mL

cation traces

heavy metals: ≤20 ppm

shipped in

ambient

storage temp.

2-8°C

SMILES string

[S+]([O-])(Cc3ncc(c(c3C)OC)C)c1[nH]c2c(n1)cc(cc2)OC

InChI

1S/C17H19N3O3S/c1-10-8-18-15(11(2)16(10)23-4)9-24(21)17-19-13-6-5-12(22-3)7-14(13)20-17/h5-8H,9H2,1-4H3,(H,19,20)

InChI key

SUBDBMMJDZJVOS-UHFFFAOYSA-N

General description

A cell-permeable pyridyl methylsulfinyl benzimidazole compound that acts as selective proton pump inhibitor. Behaves as a prodrug by undergoing an acid-catalyzed rearrangement to a thiol-reactive cationic sulfenamide that inhibits (H+, K+)-ATPase in the gastric milieu. An aryl hydrocarbon-like inducer of cytochrome P450 secretion in human liver.
A cell-permeable, selective proton pump inhibitor. Behaves as a prodrug by undergoing an acid-catalyzed rearrangement to a thiol-reactive cationic sulfenamide that inhibits (H+-K+)-ATPase in the gastric milieu. Also acts as an aryl hydrocarbon-like inducer of cytochrome P450 secretion in human liver.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
proton pump
Product does not compete with ATP.
Reversible: no

Packaging

Packaged under inert gas

Preparation Note

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Lambrecht, N., et al. 2000. J. Biol. Chem.275, 4041.
Besancon, M., et al. 1997. J. Biol. Chem.272, 22438.
Sachs, G., et al. 1995. Ann. Rev. Pharmacol. Toxicol.35, 277.
Diaz, D., et al. 1990. Gastroenterology99, 737.
Fellenius, E., et al. 1981. Nature290, 159.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Irritant (B)

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pictograms

Exclamation markEnvironment
GHS07,GHS09

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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D Diaz et al.
Gastroenterology, 99(3), 737-747 (1990-09-01)
Omeprazole is a new drug used for its high efficiency as an inhibitor of gastric acid secretion. This substituted benzimidazole molecule had been shown to decrease several liver cytochrome P450-mediated monooxygenase activities both in vitro and in vivo. The present
N Lambrecht et al.
The Journal of biological chemistry, 275(6), 4041-4048 (2000-02-08)
The gastric H,K-ATPase is covalently inhibited by substituted pyridyl-methylsulfinyl-benzimidazoles, such as omeprazole, that convert to thiophilic probes of luminally accessible cysteines in the acid space. The K(+) competitive inhibitor, SCH28080, prevented inhibition of acid transport by omeprazole. In stably expressing
M Besancon et al.
The Journal of biological chemistry, 272(36), 22438-22446 (1997-09-05)
The vesicular gastric H,K-ATPase catalyzes an electroneutral H for K exchange allowing acidification of the intravesicular space. There is a total of 28 cysteines present in the alpha subunit of the gastric H,K-ATPase, of which 10 are found in the
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Global Trade Item Number

SKUGTIN
496100-50MG04055977199833