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Metabolites & Degradation Products

Omeprazole N-Oxide (S-Isomer)

Reference StandardIn stock

Order Omeprazole N-Oxide (S-Isomer) (CAS 1427498-68-7) online at Zemixal. Request a quote with price, lead time and documents.

Pack sizes
Omeprazole N-Oxide (S-Isomer) chemical structure
CAS number1427498-68-7
FormulaC17H19N3O4S
Molar mass361.4 g/mol
Physical formSolid
HS code38229090
InChIKeyQZVDQETYNOBUPJ-UHFFFAOYSA-N
IUPAC name6-methoxy-2-[(4-methoxy-3,5-dimethyl-1-oxidopyridin-1-ium-2-yl)methylsulfinyl]-1H-benzimidazole

About Omeprazole N-Oxide (S-Isomer)

Analytical teams working on Omeprazole use Omeprazole N-Oxide (S-Isomer) as a qualified comparison standard. Key data (Reference Standard): CAS 1427498-68-7, formula C17H19N3O4S and molar mass 361.4 g/mol. It is handled as a solid.

Use cases we see most often

  • Metabolite identification
  • Stability-indicating methods
  • Impurity profiling

Safe handling

Hazard communication follows GHS (Warning: H302, H315, H317 and H319). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. Every shipment includes a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Omeprazole

See every impurity, metabolite and related compound we list for this API.

Omeprazole standards

Typical uses

  • Metabolite identification
  • Stability-indicating methods
  • Impurity profiling

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Omeprazole N-Oxide (S-Isomer)
Product nameOmeprazole N-Oxide (S-Isomer)
Catalogue numberZX-006318
CAS number1427498-68-7
IUPAC name6-methoxy-2-[(4-methoxy-3,5-dimethyl-1-oxidopyridin-1-ium-2-yl)methylsulfinyl]-1H-benzimidazole
Molecular formulaC17H19N3O4S
Molar mass361.4 g/mol
Exact mass361.1096
GradeReference Standard
Physical formSolid
XLogP31.2
H-bond donors / acceptors1 / 6
Topological polar surface area109 Ų
HS code38229090
InChIKeyQZVDQETYNOBUPJ-UHFFFAOYSA-N
SMILESCC1=C[N+](=C(C(=C1OC)C)CS(=O)C2=NC3=C(N2)C=C(C=C3)OC)[O-]
PubChem CID10992053
SynonymsOmeprazole-N-oxide, Omeprazole N-Oxide, Omeprazole-1-oxide, EsoMeprazole related substance E, 4-Methoxy-2-[[(5-methoxy-2-benzimidazolyl)sulfinyl]methyl]-3,5-dimethylpyridine 1-Oxide, 6-Methoxy-2-[[(4-Methoxy-3,5-diMethyl-1-oxido-2-pyridinyl)Methyl]sulfinyl]-

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Warning

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H317May cause an allergic skin reaction
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation
  • H411Toxic to aquatic life with long lasting effects

Precautionary statements P261, P264, P264 + P265, P270, P271, P272, P273, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P333 + P317, P337 + P317, P362 + P364, P391, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Omeprazole N-Oxide (S-Isomer)
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Omeprazole N-Oxide (S-Isomer)

Which CAS number identifies Omeprazole N-Oxide (S-Isomer)?
Omeprazole N-Oxide (S-Isomer) is registered under CAS 1427498-68-7. You may also see it listed as Omeprazole-N-oxide, Omeprazole N-Oxide, Omeprazole-1-oxide. Our catalogue number for this item is ZX-006318.
What are the formula and molar mass of Omeprazole N-Oxide (S-Isomer)?
For Omeprazole N-Oxide (S-Isomer), its formula is C17H19N3O4S and its molar mass is 361.4 g/mol. The systematic (IUPAC) name is 6-methoxy-2-[(4-methoxy-3,5-dimethyl-1-oxidopyridin-1-ium-2-yl)methylsulfinyl]-1H-benzimidazole. InChIKey QZVDQETYNOBUPJ-UHFFFAOYSA-N lets you match it in any structure database.
How is Omeprazole N-Oxide (S-Isomer) used in pharmaceutical QC?
Omeprazole N-Oxide (S-Isomer) is a characterised reference material linked to Omeprazole. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Omeprazole N-Oxide (S-Isomer)?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Omeprazole N-Oxide (S-Isomer)?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Omeprazole N-Oxide (S-Isomer) to my country?
Yes. Because Omeprazole N-Oxide (S-Isomer) is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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