4-Bromo-2,6-dichlorobenzenesulfonamide CAS 351003-55-9
| CAS No. | 351003-55-9 |
| Molecular Formula | C6H4BrCl2NO2S |
| Molecular Weight | 304.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C6H4BrCl2NO2S, 4-Bromo-2,6-dichlorobenzenesulfonamide contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 304.98 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
4-Bromo-2,6-dichlorobenzenesulfonamide (CAS 351003-55-9), molecular formula C6H4BrCl2NO2S and molecular weight 304.98 g/mol, is a CATO reference standard with documented purity and traceability.
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 Formula | C6H4BrCl2NO2S |
| Molecular Weight | 304.98 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 2-Bromo-4,6-dichlorobenzenesulfonamide (CAS 1032507-43-9)
- 4-Bromo-2,3-dichlorobenzenesulfonamide (CAS 1208075-94-8)
- 4-Bromo-3,5-dichlorobenzenesulfonamide (CAS 1208077-65-9)
- 2-Bromo-4,5-dichlorobenzenesulfonamide (CAS 1246822-09-2)
- 3-Bromo-2,4-dichlorobenzenesulfonamide (CAS 1936320-53-4)
- 2-Bromo-5-iodopyridin-3-amine (CAS 1138444-06-0)
- 2-bromo-5-iodo-pyridin-4-amine (CAS 1300750-78-0)
- 6-bromo-5-iodo-pyridin-2-amine (CAS 1806995-70-9)
Recommended Standards
- 2-(2,3-Dichloro-6-fluoro-4-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2121513-26-4)
- Diphenylthioxostannane (CAS 20332-10-9)
- 2,4-Dihydroxy-3-iodo-6-(trifluoromethyl)pyridine (CAS 1228898-53-0)
- Ostarine(MK-2866)Impurity N1 (CAS CATO-C3D-262925)
- 1-Ethyl-2,2-dimethylpiperazine dihydrochloride (CAS 1255718-11-6)
- 8-Hydroxy-7-methoxyisoquinoline-1-carbonitrile (CAS 654077-41-5)
- tert-Butyl 4-hydrazinylbenzo[b]thiophene-7-carboxylate (CAS 1956382-85-6)
- 5,6-Dimethylpyridine-2,3-diamine (CAS 98432-14-5)
- n-(3-Fluorophenyl)pyrazine-2-carboxamide (CAS 320582-40-9)
- 6-(Chloromethyl)-2-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1638920-18-9)
- (+/-)-1,2-Propylene-d6 Oxide (Stabilized with hydroquinone) (CAS 202468-69-7)
- Benzyl ((1R,2R)-2-methoxycyclohexyl)carbamate (CAS 2272567-55-0)
- 1-(3-aminopyrrolidin-1-yl)-2-methylpropan-1-one (CAS 833483-47-9)
- Pancreatic Polypeptide (31-36), amide, human (CAS 74012-13-8)
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