3,5-Dimethyl-4-nitroso-1-phenyl-1H-pyrazole CAS 715-99-1

Description

3,5-Dimethyl-4-nitroso-1-phenyl-1H-pyrazole (CAS 715-99-1) is a high-purity analytical reference standard with the molecular formula C11H11N3O and a molecular weight of 201.22 g/mol.

Structurally, 3,5-Dimethyl-4-nitroso-1-phenyl-1H-pyrazole (C11H11N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 201.22 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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), 3,5-Dimethyl-4-nitroso-1-phenyl-1H-pyrazole 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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