4-(tert-Butyl)-1H-pyrazole CAS 105285-21-0

Purity 97%+In StockPharmaceutical Standards
CAS No.105285-21-0
Molecular FormulaC7H12N2
Molecular Weight124.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(tert-Butyl)-1H-pyrazole CAS 105285-21-0 chemical structure

Description

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.

4-(tert-Butyl)-1H-pyrazole (CAS 105285-21-0) is a high-purity analytical reference standard with the molecular formula C7H12N2 and a molecular weight of 124.18 g/mol.

The molecular framework of 4-(tert-Butyl)-1H-pyrazole (C7H12N2) is characterized by a nitrile group. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

As a certified reference material (CRM), 4-(tert-Butyl)-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

Molecular FormulaC7H12N2
Molecular Weight124.18 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1987
Nitrogen Atoms2

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