3-Nitro-4-(2-oxopyrrolidin-1-yl)benzenesulfonyl chloride CAS 331256-60-1

Purity 97%+In StockPharmaceutical Standards
CAS No.331256-60-1
Molecular FormulaC10H9ClN2O5S
Molecular Weight304.71 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Nitro-4-(2-oxopyrrolidin-1-yl)benzenesulfonyl chloride CAS 331256-60-1 chemical structure

Description

CATO supplies 3-Nitro-4-(2-oxopyrrolidin-1-yl)benzenesulfonyl chloride (CAS 331256-60-1), a certified reference material (molecular formula C10H9ClN2O5S, MW 304.71 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 3-Nitro-4-(2-oxopyrrolidin-1-yl)benzenesulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 304.71 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

As a certified reference material (CRM), 3-Nitro-4-(2-oxopyrrolidin-1-yl)benzenesulfonyl chloride 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 FormulaC10H9ClN2O5S
Molecular Weight304.71 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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