3,5-Dimethyl-1-phenyl-1h-pyrazol-4-ol CAS 16209-01-1

Purity 97%+In StockPharmaceutical Standards
CAS No.16209-01-1
Molecular FormulaC11H12N2O
Molecular Weight188.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,5-Dimethyl-1-phenyl-1h-pyrazol-4-ol CAS 16209-01-1 chemical structure

Description

As a certified reference material (CRM), 3,5-Dimethyl-1-phenyl-1h-pyrazol-4-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.

3,5-Dimethyl-1-phenyl-1h-pyrazol-4-ol (CAS 16209-01-1) is a high-purity analytical reference standard with the molecular formula C11H12N2O and a molecular weight of 188.23 g/mol.

The molecular framework of 3,5-Dimethyl-1-phenyl-1h-pyrazol-4-ol (C11H12N2O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

Physical & Chemical Properties

Molecular FormulaC11H12N2O
Molecular Weight188.23 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1961
Nitrogen Atoms2

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