5-methyl-1H-pyrazole-3-carbohydrazide CAS 40535-14-6

Purity 97%+In StockPharmaceutical Standards
CAS No.40535-14-6
Molecular FormulaC5H12N4O
Molecular Weight144.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-methyl-1H-pyrazole-3-carbohydrazide CAS 40535-14-6 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.

5-methyl-1H-pyrazole-3-carbohydrazide (CAS 40535-14-6), molecular formula C5H12N4O and molecular weight 144.17 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to an amide group, a hydroxyl group, an ether linkage, 5-methyl-1H-pyrazole-3-carbohydrazide is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 144.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC5H12N4O
Molecular Weight144.17 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)2.0
CAS Registry Year (est.)1968
Nitrogen Atoms4

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Why CATO?