5H-Benzo[b]pyrido[3,2-e][1,4]oxazine CAS 261-82-5

Purity 97%+In StockPharmaceutical Standards
CAS No.261-82-5
Molecular FormulaC11H8N2O
Molecular Weight184.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5H-Benzo[b]pyrido[3,2-e][1,4]oxazine CAS 261-82-5 chemical structure

Description

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

CATO supplies 5H-Benzo[b]pyrido[3,2-e][1,4]oxazine (CAS 261-82-5), a certified reference material (molecular formula C11H8N2O, MW 184.19 g/mol) for analytical method development and quality control.

Structurally, 5H-Benzo[b]pyrido[3,2-e][1,4]oxazine (C11H8N2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 184.19 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC11H8N2O
Molecular Weight184.19 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms2

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