4-(3-(4-Fluorophenyl)-5-methylisoxazol-4-yl)benzenesulfonamide CAS 181696-40-2

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(3-(4-Fluorophenyl)-5-methylisoxazol-4-yl)benzenesulfonamide.

4-(3-(4-Fluorophenyl)-5-methylisoxazol-4-yl)benzenesulfonamide (CAS 181696-40-2) is a high-purity analytical reference standard with the molecular formula C16H13FN2O3S and a molecular weight of 332.35 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution, 4-(3-(4-Fluorophenyl)-5-methylisoxazol-4-yl)benzenesulfonamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 332.35 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

As a certified reference material (CRM), 4-(3-(4-Fluorophenyl)-5-methylisoxazol-4-yl)benzenesulfonamide 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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