4-(3-Bromobenzyl)-7-chloro-4,5-dihydrobenzo[f][1,4]oxazepin-3(2H)-one CAS 1326909-74-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1326909-74-3
Molecular FormulaC16H13BrClNO2
Molecular Weight366.64 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(3-Bromobenzyl)-7-chloro-4,5-dihydrobenzo[f][1,4]oxazepin-3(2H)-one CAS 1326909-74-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 366.64 g/mol gives 4-(3-Bromobenzyl)-7-chloro-4,5-dihydrobenzo[f][1,4]oxazepin-3(2H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(3-Bromobenzyl)-7-chloro-4,5-dihydrobenzo[f][1,4]oxazepin-3(2H)-one (CAS 1326909-74-3), molecular formula C16H13BrClNO2 and molecular weight 366.64 g/mol, is a CATO reference standard with documented purity and traceability.

4-(3-Bromobenzyl)-7-chloro-4,5-dihydrobenzo[f][1,4]oxazepin-3(2H)-one (C16H13BrClNO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. Halogen substitution raises its density and boiling point, 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.

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 FormulaC16H13BrClNO2
Molecular Weight366.64 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Halogen ContentCl/Br-containing
Nitrogen Atoms1

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