1-(4-Nitrophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid CAS 1264043-25-5

Description

As a certified reference material (CRM), 1-(4-Nitrophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid 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.

1-(4-Nitrophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (CAS 1264043-25-5) is a high-purity analytical reference standard with the molecular formula C16H13N3O4 and a molecular weight of 311.29 g/mol.

Structurally, 1-(4-Nitrophenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid (C16H13N3O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 311.29 g/mol, it falls into the moderately-high-molecular-weight range. 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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