3,4-Dichloro-N-(quinoxalin-6-yl)benzenesulfonamide CAS 478259-98-2
| CAS No. | 478259-98-2 |
| Molecular Formula | C14H9Cl2N3O2S |
| Molecular Weight | 354.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3,4-Dichloro-N-(quinoxalin-6-yl)benzenesulfonamide is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 3,4-Dichloro-N-(quinoxalin-6-yl)benzenesulfonamide (CAS 478259-98-2), a certified reference material (molecular formula C14H9Cl2N3O2S, MW 354.21 g/mol) for analytical method development and quality control.
Structurally, 3,4-Dichloro-N-(quinoxalin-6-yl)benzenesulfonamide (C14H9Cl2N3O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 354.21 g/mol, it falls into the moderately-high-molecular-weight range. 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), 3,4-Dichloro-N-(quinoxalin-6-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 Formula | C14H9Cl2N3O2S |
| Molecular Weight | 354.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 3-(2,6-Dichlorophenyl)-5-methyl-N-(thiazol-2-yl)isoxazole-4-carboxamide (CAS 326902-99-2)
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- 2,5-Dichloroquinolin-8-yl benzenesulfonate (CAS 432021-47-1)
- 3-Chloro-N-(3-chloroquinoxalin-2-yl)benzenesulfonamide (CAS 743444-94-2)
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- 2-Methyl-1-oxo-1,2-dihydroisoquinoline-4-carbaldehyde (CAS 31588-53-1)
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