4-Ethyl-1H-pyrazol-3-amine CAS 43024-15-3

Purity 97%+In StockPharmaceutical Standards
CAS No.43024-15-3
Molecular FormulaC5H9N3
Molecular Weight111.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Ethyl-1H-pyrazol-3-amine CAS 43024-15-3 chemical structure

Description

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

CATO supplies 4-Ethyl-1H-pyrazol-3-amine (CAS 43024-15-3), a certified reference material (molecular formula C5H9N3, MW 111.15 g/mol) for analytical method development and quality control.

The molecular framework of 4-Ethyl-1H-pyrazol-3-amine (C5H9N3) 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.

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.

Physical & Chemical Properties

Molecular FormulaC5H9N3
Molecular Weight111.15 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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1969
Nitrogen Atoms3

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