3-(5-Bromo-6-methoxynaphthalen-2-yl)-1-(4-fluorophenyl)-4-methyl-1H-pyrazole CAS 318239-44-0

Description

3-(5-Bromo-6-methoxynaphthalen-2-yl)-1-(4-fluorophenyl)-4-methyl-1H-pyrazole (CAS 318239-44-0), molecular formula C21H16BrFN2O and molecular weight 411.27 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3-(5-Bromo-6-methoxynaphthalen-2-yl)-1-(4-fluorophenyl)-4-methyl-1H-pyrazole (C21H16BrFN2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 411.27 g/mol, it falls into the moderately-high-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-Bromo-6-methoxynaphthalen-2-yl)-1-(4-fluorophenyl)-4-methyl-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

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