1-(3-Fluorophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one CAS 20124-84-9

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(3-Fluorophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one.

1-(3-Fluorophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one (CAS 20124-84-9) is a high-purity analytical reference standard with the molecular formula C10H9FN2O and a molecular weight of 192.19 g/mol.

Structurally, 1-(3-Fluorophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one (C10H9FN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine 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 192.19 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), 1-(3-Fluorophenyl)-3-methyl-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.

Physical & Chemical Properties

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com