4-Ethoxy-1H-pyrazole CAS 81437-10-7

Purity 97%+In StockPharmaceutical Standards
CAS No.81437-10-7
Molecular FormulaC5H8N2O
Molecular Weight112.13 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Ethoxy-1H-pyrazole CAS 81437-10-7 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-Ethoxy-1H-pyrazole (CAS 81437-10-7) is a high-purity analytical reference standard with the molecular formula C5H8N2O and a molecular weight of 112.13 g/mol.

The molecular framework of 4-Ethoxy-1H-pyrazole (C5H8N2O) is characterized by an amide group, a hydroxyl group, an ether linkage. 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

Physical & Chemical Properties

Molecular FormulaC5H8N2O
Molecular Weight112.13 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.)1980
Nitrogen Atoms2

Related Ethoxy Standards

Recommended Standards

Why CATO?