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Merck
CN

O0151000

Omeprazole impurity D

European Pharmacopoeia (EP) Reference Standard

Synonym(s):

Omeprazole sulfone, 5-Methoxy-2-{[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfonyl}-1H-benzimidazole, Omeprazole sulphone

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About This Item

Empirical Formula (Hill Notation):
C17H19N3O4S
CAS Number:
Molecular Weight:
361.42
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
8347309
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InChI

1S/C17H19N3O4S/c1-10-8-18-15(11(2)16(10)24-4)9-25(21,22)17-19-13-6-5-12(23-3)7-14(13)20-17/h5-8H,9H2,1-4H3,(H,19,20)

SMILES string

O=S(C1=NC2=CC(OC)=CC=C2N1)(CC3=NC=C(C)C(OC)=C3C)=O

InChI key

IXEQEYRTSRFZEO-UHFFFAOYSA-N

grade

pharmaceutical primary standard

API family

omeprazole

manufacturer/tradename

EDQM

application(s)

pharmaceutical (small molecule)

format

neat

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the Issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Omeprazole impurity D EP Reference standard, intended for use in laboratory tests only as specifically prescribed in the European Pharmacopoeia.

Packaging

The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue.

Other Notes

Sales restrictions may apply.

pictograms

Exclamation markEnvironment

signalword

Warning

hcodes

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable


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G García-Encina et al.
Journal of pharmaceutical and biomedical analysis, 21(2), 371-382 (2000-03-07)
An automated system using on-line solid-phase extraction and HPLC with UV detection has been validated in order to determine omeprazole in human plasma. The extraction was carried out using C18 cartridges. After washing, omeprazole was eluted from the cartridge with
Naser L Rezk et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 844(2), 314-321 (2006-08-22)
A simple, sensitive and specific reverse-phase high-performance liquid chromatography (HPLC) assay for the simultaneous quantitative determination of omeprazole and its three metabolites in human plasma was developed and validated. This method provides excellent chromatographic resolution and peak shape for the
Yanhua Zhang et al.
Journal of clinical pharmacology, 46(3), 345-352 (2006-02-24)
To determine the effects of sex and menstrual cycle phase on CYP3A activity and to characterize the intraindividual variability of CYP3A, 24 Caucasian adults were given a single dose of omeprazole every 14th day for 3 months (men) or during
Ylva Böttiger
European journal of clinical pharmacology, 62(8), 621-625 (2006-06-23)
The hydroxylation of omeprazole, measured as the ratio of omeprazole/5-hydroxyomeprazole in a plasma sample taken 3 h after an oral dose, is an established method to determine CYP2C19 activity, and the ratio of omeprazole AUC/omeprazole sulfone AUC has been used
Ia Hultman et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 848(2), 317-322 (2006-12-05)
A LC-MS/MS method was developed for quantitative determination of esomeprazole, and its two main metabolites 5-hydroxyesomeprazole and omeprazole sulphone in 25 microL human, rat or dog plasma. The analytes and their internal standards were extracted from plasma into methyl tert-butyl

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