N-(3,4-dichlorobenzyl)-2-methyl-3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-2-carboxamide CAS 861211-39-4

Purity 97%+In StockPharmaceutical Standards
CAS No.861211-39-4
Molecular FormulaC16H13Cl2N3O3
Molecular Weight366.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

N-(3,4-dichlorobenzyl)-2-methyl-3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-2-carboxamide CAS 861211-39-4 chemical structure

Description

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.

N-(3,4-dichlorobenzyl)-2-methyl-3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-2-carboxamide (CAS 861211-39-4) is a high-purity analytical reference standard with the molecular formula C16H13Cl2N3O3 and a molecular weight of 366.20 g/mol.

N-(3,4-dichlorobenzyl)-2-methyl-3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-2-carboxamide (C16H13Cl2N3O3) contains a nitrogen-containing heterocyclic scaffold, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

As a certified reference material (CRM), N-(3,4-dichlorobenzyl)-2-methyl-3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-2-carboxamide 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 FormulaC16H13Cl2N3O3
Molecular Weight366.20 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
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 Atoms3

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