2-Nitropyridine-3-sulfonamide CAS 75903-61-6

Purity 97%+In StockPharmaceutical Standards
CAS No.75903-61-6
Molecular FormulaC5H5N3O4S
Molecular Weight203.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Nitropyridine-3-sulfonamide CAS 75903-61-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 203.18 g/mol gives 2-Nitropyridine-3-sulfonamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-Nitropyridine-3-sulfonamide (CAS 75903-61-6) is a high-purity analytical reference standard with the molecular formula C5H5N3O4S and a molecular weight of 203.18 g/mol.

The molecular framework of 2-Nitropyridine-3-sulfonamide (C5H5N3O4S) is characterized by a carbohydrate-derived structure, an amide group, a sulfone group. 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. 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.

As a certified reference material (CRM), 2-Nitropyridine-3-sulfonamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC5H5N3O4S
Molecular Weight203.18 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
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
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1978
Nitrogen Atoms3
Sulfur Atoms1

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