4-(1H-Pyrazol-4-yl)but-3-yn-1-ol CAS 175474-15-4

Purity 97%+In StockPharmaceutical Standards
CAS No.175474-15-4
Molecular FormulaC7H8N2O
Molecular Weight136.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(1H-Pyrazol-4-yl)but-3-yn-1-ol CAS 175474-15-4 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

4-(1H-Pyrazol-4-yl)but-3-yn-1-ol (CAS 175474-15-4) is a high-purity analytical reference standard with the molecular formula C7H8N2O and a molecular weight of 136.15 g/mol.

The molecular framework of 4-(1H-Pyrazol-4-yl)but-3-yn-1-ol (C7H8N2O) is characterized by an amide group, a hydroxyl group, an ether linkage, an aromatic ring system. 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC7H8N2O
Molecular Weight136.15 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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2007
Nitrogen Atoms2

Related H Standards

Recommended Standards

Why CATO?