3-phenyl-1H-pyrazole-5-carbohydrazide CAS 94033-64-4

Purity 97%+In StockPharmaceutical Standards
CAS No.94033-64-4
Molecular FormulaC10H20N4O
Molecular Weight212.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-phenyl-1H-pyrazole-5-carbohydrazide CAS 94033-64-4 chemical structure

Description

CATO supplies 3-phenyl-1H-pyrazole-5-carbohydrazide (CAS 94033-64-4), a certified reference material (molecular formula C10H20N4O, MW 212.29 g/mol) for analytical method development and quality control.

Structurally, 3-phenyl-1H-pyrazole-5-carbohydrazide (C10H20N4O) contains an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 212.29 g/mol, it falls into the medium-molecular-weight range. 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 FormulaC10H20N4O
Molecular Weight212.29 g/mol
AppearanceWhite to pale yellow crystalline powder. (faint amine-like odor)
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.)1983
Nitrogen Atoms4

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