4-(1-Methyl-1h-pyrazol-5-yl)butan-2-ol CAS 1339159-00-0

Description

Compared with other compounds in its class, the molecular weight of 154.21 g/mol gives 4-(1-Methyl-1h-pyrazol-5-yl)butan-2-ol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(1-Methyl-1h-pyrazol-5-yl)butan-2-ol (CAS 1339159-00-0), molecular formula C8H14N2O and molecular weight 154.21 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to an amide group, a hydroxyl group, an ether linkage, 4-(1-Methyl-1h-pyrazol-5-yl)butan-2-ol is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 154.21 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.

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-(1-Methyl-1h-pyrazol-5-yl)butan-2-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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