4-(4-Chloro-1H-pyrazol-1-yl)-2-methylbenzaldehyde CAS 1247173-31-4

Description

Compared with other compounds in its class, the molecular weight of 220.65 g/mol gives 4-(4-Chloro-1H-pyrazol-1-yl)-2-methylbenzaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(4-Chloro-1H-pyrazol-1-yl)-2-methylbenzaldehyde (CAS 1247173-31-4), molecular formula C11H9ClN2O and molecular weight 220.65 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 4-(4-Chloro-1H-pyrazol-1-yl)-2-methylbenzaldehyde is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 220.65 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-(4-Chloro-1H-pyrazol-1-yl)-2-methylbenzaldehyde 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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