2-(2-Chlorophenyl)-4h-benzo[d][1,3]oxazin-4-one CAS 4765-51-9

Description

Compared with other compounds in its class, the molecular weight of 257.67 g/mol gives 2-(2-Chlorophenyl)-4h-benzo[d][1,3]oxazin-4-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-(2-Chlorophenyl)-4h-benzo[d][1,3]oxazin-4-one (CAS 4765-51-9), molecular formula C14H8ClNO2 and molecular weight 257.67 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2-(2-Chlorophenyl)-4h-benzo[d][1,3]oxazin-4-one (C14H8ClNO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 257.67 g/mol, it falls into the medium-molecular-weight range. 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.

As a certified reference material (CRM), 2-(2-Chlorophenyl)-4h-benzo[d][1,3]oxazin-4-one 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

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