3-Chloro-4-methyl-1,3-dihydro-2H-1,5-benzodiazepin-2-one CAS 79923-72-1

Description

Compared with other compounds in its class, the molecular weight of 208.64 g/mol gives 3-Chloro-4-methyl-1,3-dihydro-2H-1,5-benzodiazepin-2-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-Chloro-4-methyl-1,3-dihydro-2H-1,5-benzodiazepin-2-one (CAS 79923-72-1), molecular formula C10H9ClN2O and molecular weight 208.64 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3-Chloro-4-methyl-1,3-dihydro-2H-1,5-benzodiazepin-2-one (C10H9ClN2O) 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 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 208.64 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.

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), 3-Chloro-4-methyl-1,3-dihydro-2H-1,5-benzodiazepin-2-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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