4-(4,5-Dichloro-6-oxopyridazin-1(6h)-yl)benzenesulfonamide CAS 33098-13-4

Purity 97%+In StockPharmaceutical Standards
CAS No.33098-13-4
Molecular FormulaC10H7Cl2N3O3S
Molecular Weight320.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(4,5-Dichloro-6-oxopyridazin-1(6h)-yl)benzenesulfonamide CAS 33098-13-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 320.15 g/mol gives 4-(4,5-Dichloro-6-oxopyridazin-1(6h)-yl)benzenesulfonamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(4,5-Dichloro-6-oxopyridazin-1(6h)-yl)benzenesulfonamide (CAS 33098-13-4) is a high-purity analytical reference standard with the molecular formula C10H7Cl2N3O3S and a molecular weight of 320.15 g/mol.

4-(4,5-Dichloro-6-oxopyridazin-1(6h)-yl)benzenesulfonamide (C10H7Cl2N3O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), 4-(4,5-Dichloro-6-oxopyridazin-1(6h)-yl)benzenesulfonamide 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 FormulaC10H7Cl2N3O3S
Molecular Weight320.15 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1966
Halogen ContentCl-containing
Nitrogen Atoms3
Sulfur Atoms1

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