4-Methoxy-3,5-dimethylpyridine 1-Oxide

Name: 4-Methoxy-3,5-dimethylpyridine 1-Oxide
Brand: Vaqora Chemicals
SKU: VQ-037083

About 4-Methoxy-3,5-dimethylpyridine 1-Oxide

4-Methoxy-3,5-dimethylpyridine 1-Oxide is an impurity of Omeprazole carrying the CAS registry number 91219-89-5. With the molecular formula C8H11NO2, it has a molar mass of 153.18 g/mol. Systematically, it is named 4-methoxy-3,5-dimethyl-1-oxidopyridin-1-ium. Alternative names: Pyridine, 4-methoxy-3,5-dimethyl-, 1-oxide and 3,5-Dimethyl-4-methoxypyridine N-oxide.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Pharmaceutical QC and development laboratories use this impurity standard of Omeprazole to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies 4-Methoxy-3,5-dimethylpyridine 1-Oxide in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Omeprazole

View every impurity, metabolite and intermediate we list for Omeprazole.

Omeprazole impurities

Specifications & identifiers

Chemical identifiers
Product name	4-Methoxy-3,5-dimethylpyridine 1-Oxide
Catalogue No.	VQ-037083
CAS Number	91219-89-5
IUPAC name	4-methoxy-3,5-dimethyl-1-oxidopyridin-1-ium
Molecular formula	C₈H₁₁NO₂
Molecular weight	153.18 g/mol
Exact mass	153.079
Grade	Reference Standard
HSN code	38229090
InChIKey	QVLHHDZWTFJIPA-UHFFFAOYSA-N
SMILES	CC1=C[N+](=CC(=C1OC)C)[O-]
PubChem CID	13553787

Physical properties
Physical form	Solid
LogP (XLogP3)	0.6
H-bond donors / acceptors	0 / 2
TPSA	34.7 Å²

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 4-Methoxy-3,5-dimethylpyridine 1-Oxide?

The CAS Registry Number of 4-Methoxy-3,5-dimethylpyridine 1-Oxide is 91219-89-5. It is also known as Pyridine, 4-methoxy-3,5-dimethyl-, 1-oxide, 3,5-Dimethyl-4-methoxypyridine N-oxide, 3,5-dimethyl-4-methoxy-pyridine-N-oxide.

What is the molecular formula and molecular weight of 4-Methoxy-3,5-dimethylpyridine 1-Oxide?

4-Methoxy-3,5-dimethylpyridine 1-Oxide has the molecular formula C8H11NO2 and a molecular weight of 153.18 g/mol. Its IUPAC name is 4-methoxy-3,5-dimethyl-1-oxidopyridin-1-ium.

What is 4-Methoxy-3,5-dimethylpyridine 1-Oxide used for?

4-Methoxy-3,5-dimethylpyridine 1-Oxide is supplied as a characterised reference material related to Omeprazole. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of 4-Methoxy-3,5-dimethylpyridine 1-Oxide can I order?

We supply 4-Methoxy-3,5-dimethylpyridine 1-Oxide in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 4-Methoxy-3,5-dimethylpyridine 1-Oxide?

Yes. Every lot of 4-Methoxy-3,5-dimethylpyridine 1-Oxide is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 4-Methoxy-3,5-dimethylpyridine 1-Oxide be shipped internationally?

Yes. We export 4-Methoxy-3,5-dimethylpyridine 1-Oxide worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.