(6-Chloro-5-(methylsulfonamido)pyridin-3-yl)boronic acid CAS 1198803-07-4

Purity 97%+In StockPharmaceutical Standards
CAS No.1198803-07-4
Molecular FormulaC6H8BClN2O4S
Molecular Weight250.47 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(6-Chloro-5-(methylsulfonamido)pyridin-3-yl)boronic acid CAS 1198803-07-4 chemical structure

Description

Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, (6-Chloro-5-(methylsulfonamido)pyridin-3-yl)boronic acid is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 250.47 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.

CATO supplies (6-Chloro-5-(methylsulfonamido)pyridin-3-yl)boronic acid (CAS 1198803-07-4), a certified reference material (molecular formula C6H8BClN2O4S, MW 250.47 g/mol) for analytical method development and quality control.

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 FormulaC6H8BClN2O4S
Molecular Weight250.47 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 methanol, ethanol, DMSO, water
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)3.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1989
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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