3-Phenyl-4-tosyl-3,4-dihydro-2H-benzo[b][1,4]oxazine CAS 478048-63-4

Purity 97%+In StockPharmaceutical Standards
CAS No.478048-63-4
Molecular FormulaC21H19NO3S
Molecular Weight365.45 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Phenyl-4-tosyl-3,4-dihydro-2H-benzo[b][1,4]oxazine CAS 478048-63-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 365.45 g/mol gives 3-Phenyl-4-tosyl-3,4-dihydro-2H-benzo[b][1,4]oxazine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-Phenyl-4-tosyl-3,4-dihydro-2H-benzo[b][1,4]oxazine (CAS 478048-63-4), molecular formula C21H19NO3S and molecular weight 365.45 g/mol, is a CATO reference standard with documented purity and traceability.

3-Phenyl-4-tosyl-3,4-dihydro-2H-benzo[b][1,4]oxazine (C21H19NO3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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

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 FormulaC21H19NO3S
Molecular Weight365.45 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms1
Sulfur Atoms1

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