4,5-dimethyl-1H-pyrazol-3-amine acetate CAS 116568-90-2

Purity 97%+In StockPharmaceutical Standards
CAS No.116568-90-2
Molecular FormulaC5H9N3
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4,5-dimethyl-1H-pyrazol-3-amine acetate CAS 116568-90-2 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4,5-dimethyl-1H-pyrazol-3-amine acetate.

CATO supplies 4,5-dimethyl-1H-pyrazol-3-amine acetate (CAS 116568-90-2), a certified reference material (molecular formula C5H9N3C2H4O2, MW 171.20 g/mol) for analytical method development and quality control.

The molecular framework of 4,5-dimethyl-1H-pyrazol-3-amine acetate (C5H9N3C2H4O2) is characterized by an amino-acid-derived structure, 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).

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.

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 C2H4O2
Molecular Weight171.20 g/mol
AppearanceWhite to pale yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1990
Nitrogen Atoms3

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