4-{[(4-methylphenyl)amino]methylidene}-3-phenyl-4,5-dihydro-1H-pyrazol-5-one CAS 338975-64-7

Description

As a certified reference material (CRM), 4-{[(4-methylphenyl)amino]methylidene}-3-phenyl-4,5-dihydro-1H-pyrazol-5-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.

4-{[(4-methylphenyl)amino]methylidene}-3-phenyl-4,5-dihydro-1H-pyrazol-5-one (CAS 338975-64-7), molecular formula C17H15N3O and molecular weight 277.32 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C17H15N3O, 4-{[(4-methylphenyl)amino]methylidene}-3-phenyl-4,5-dihydro-1H-pyrazol-5-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 277.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

Physical & Chemical Properties

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