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Pharmacopeial Impurities (EP / USP / BP)

Omeprazole EP impurity I

Reference StandardAvailable on request

Buy Omeprazole EP impurity I (CAS 158812-85-2) from Zemixal: C17H19N3O5S, COA and SDS with every lot, worldwide shipping.

Pack sizes
Omeprazole EP impurity I chemical structure
CAS number158812-85-2
FormulaC17H19N3O5S
Molar mass377.4 g/mol
Physical formSolid
HS code38229090
InChIKeyZBGMHRIYIGAEGJ-UHFFFAOYSA-N
IUPAC name6-methoxy-2-[(4-methoxy-3,5-dimethyl-1-oxidopyridin-1-ium-2-yl)methylsulfonyl]-1H-benzimidazole

About Omeprazole EP impurity I

Zemixal lists Omeprazole EP impurity I for laboratories that identify, quantify or control Omeprazole and its related substances. Identity at a glance (Reference Standard): CAS 158812-85-2, formula C17H19N3O5S and molar mass 377.4 g/mol. It is handled as a solid.

Typical applications

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Handling and storage

Classified under GHS with signal word Warning and hazard statements H319. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Each lot travels with a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Omeprazole

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

Omeprazole standards

Typical uses

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Omeprazole EP impurity I
Product nameOmeprazole EP impurity I
Catalogue numberZX-022358
CAS number158812-85-2
IUPAC name6-methoxy-2-[(4-methoxy-3,5-dimethyl-1-oxidopyridin-1-ium-2-yl)methylsulfonyl]-1H-benzimidazole
Molecular formulaC17H19N3O5S
Molar mass377.4 g/mol
Exact mass377.1045
GradeReference Standard
Physical formSolid
XLogP31.2
H-bond donors / acceptors1 / 6
Topological polar surface area115 Ų
HS code38229090
InChIKeyZBGMHRIYIGAEGJ-UHFFFAOYSA-N
SMILESCC1=C[N+](=C(C(=C1OC)C)CS(=O)(=O)C2=NC3=C(N2)C=C(C=C3)OC)[O-]
PubChem CID21256701
SynonymsOmeprazole Sulfone N-Oxide, Omeprazole - Impurity I, Omeprazole Impurity I, Omeprazole Impurity 75, Omeprazole Sulphone N-Oxide, Omeprazole sulfonyl nitrogen oxide, 4-Methoxy-2-[[(6-methoxy-2-benzimidazolyl)sulfonyl]methyl]-3,5-dimethylpyridine 1-Oxide

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

Signal word Warning

  • H319Causes serious eye irritation

Precautionary statements P264 + P265, P280, P305 + P351 + P338, P337 + P317

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 EP impurity I
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 EP impurity I

Which CAS number identifies Omeprazole EP impurity I?
Omeprazole EP impurity I is registered under CAS 158812-85-2. You may also see it listed as Omeprazole Sulfone N-Oxide, Omeprazole - Impurity I, Omeprazole Impurity I. Our catalogue number for this item is ZX-022358.
What are the formula and molar mass of Omeprazole EP impurity I?
For Omeprazole EP impurity I, its formula is C17H19N3O5S and its molar mass is 377.4 g/mol. The systematic (IUPAC) name is 6-methoxy-2-[(4-methoxy-3,5-dimethyl-1-oxidopyridin-1-ium-2-yl)methylsulfonyl]-1H-benzimidazole. InChIKey ZBGMHRIYIGAEGJ-UHFFFAOYSA-N lets you match it in any structure database.
How is Omeprazole EP impurity I used in pharmaceutical QC?
Omeprazole EP impurity I 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 EP impurity I?
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 EP impurity I?
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 EP impurity I to my country?
Yes. Because Omeprazole EP impurity I 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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