2-(3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazin-2-yl)ethyl 4-chlorobenzoate CAS 866018-66-8

Purity 97%+In StockPharmaceutical Standards
CAS No.866018-66-8
Molecular FormulaC16H13ClN2O4
Molecular Weight332.74 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazin-2-yl)ethyl 4-chlorobenzoate CAS 866018-66-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 332.74 g/mol gives 2-(3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazin-2-yl)ethyl 4-chlorobenzoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 2-(3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazin-2-yl)ethyl 4-chlorobenzoate (CAS 866018-66-8), a certified reference material (molecular formula C16H13ClN2O4, MW 332.74 g/mol) for analytical method development and quality control.

2-(3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazin-2-yl)ethyl 4-chlorobenzoate (C16H13ClN2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

As a certified reference material (CRM), 2-(3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazin-2-yl)ethyl 4-chlorobenzoate 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 FormulaC16H13ClN2O4
Molecular Weight332.74 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentCl-containing
Nitrogen Atoms2

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