5-(Chloromethyl)-2-phenylpyrazolo[1,5-a]pyrimidin-7-ol CAS 189018-16-4

Description

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 5-(Chloromethyl)-2-phenylpyrazolo[1,5-a]pyrimidin-7-ol is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 259.69 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

5-(Chloromethyl)-2-phenylpyrazolo[1,5-a]pyrimidin-7-ol (CAS 189018-16-4) is a high-purity analytical reference standard with the molecular formula C13H10ClN3O and a molecular weight of 259.69 g/mol.

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), 5-(Chloromethyl)-2-phenylpyrazolo[1,5-a]pyrimidin-7-ol 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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