n-(4-Bromo-3-ethyl-1-methyl-1h-pyrazol-5-yl)methanesulfonamide CAS 1489591-32-3

Purity 97%+In StockPharmaceutical Standards
CAS No.1489591-32-3
Molecular FormulaC7H12BrN3O2S
Molecular Weight282.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

n-(4-Bromo-3-ethyl-1-methyl-1h-pyrazol-5-yl)methanesulfonamide CAS 1489591-32-3 chemical structure

Description

The occurrence of n-(4-Bromo-3-ethyl-1-methyl-1h-pyrazol-5-yl)methanesulfonamide is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies n-(4-Bromo-3-ethyl-1-methyl-1h-pyrazol-5-yl)methanesulfonamide (CAS 1489591-32-3), a certified reference material (molecular formula C7H12BrN3O2S, MW 282.16 g/mol) for analytical method development and quality control.

Structurally, n-(4-Bromo-3-ethyl-1-methyl-1h-pyrazol-5-yl)methanesulfonamide (C7H12BrN3O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. 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 282.16 g/mol, it falls into the medium-molecular-weight range. 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.

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 FormulaC7H12BrN3O2S
Molecular Weight282.16 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1992
Halogen ContentBr-containing
Nitrogen Atoms3
Sulfur Atoms1

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