Ethyl 6-(ethylsulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate CAS 866041-08-9

Purity 97%+In StockPharmaceutical Standards
CAS No.866041-08-9
Molecular FormulaC13H17NO5S
Molecular Weight299.34 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 6-(ethylsulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate CAS 866041-08-9 chemical structure

Description

The occurrence of Ethyl 6-(ethylsulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Ethyl 6-(ethylsulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate (CAS 866041-08-9), molecular formula C13H17NO5S and molecular weight 299.34 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of Ethyl 6-(ethylsulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylate (C13H17NO5S) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC13H17NO5S
Molecular Weight299.34 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms1
Sulfur Atoms1

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