2-Ethoxy-5-(methylsulfonyl)pyridine CAS 721430-01-9

Purity 97%+In StockPharmaceutical Standards
CAS No.721430-01-9
Molecular FormulaC8H11NO3S
Molecular Weight201.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Ethoxy-5-(methylsulfonyl)pyridine CAS 721430-01-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 201.24 g/mol gives 2-Ethoxy-5-(methylsulfonyl)pyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-Ethoxy-5-(methylsulfonyl)pyridine (CAS 721430-01-9), molecular formula C8H11NO3S and molecular weight 201.24 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 2-Ethoxy-5-(methylsulfonyl)pyridine (C8H11NO3S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 2-Ethoxy-5-(methylsulfonyl)pyridine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC8H11NO3S
Molecular Weight201.24 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Nitrogen Atoms1
Sulfur Atoms1

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