4-Bromo-3-nitrobenzenesulfonyl Chloride CAS 4750-22-5
| CAS No. | 4750-22-5 |
| Molecular Formula | C6H3BrClNO4S |
| Molecular Weight | 300.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-3-nitrobenzenesulfonyl Chloride (C6H3BrClNO4S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 4-Bromo-3-nitrobenzenesulfonyl Chloride (CAS 4750-22-5), a certified reference material (molecular formula C6H3BrClNO4S, MW 300.51 g/mol) for analytical method development and quality control.
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 | C6H3BrClNO4S |
| Molecular Weight | 300.51 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 2-Bromo-4-nitrobenzene-1-sulfonyl chloride (CAS 1099660-60-2)
- 3-Bromo-4-nitrobenzene-1-sulfonyl chloride (CAS 1181458-26-3)
- 5-Bromo-2-nitrobenzenesulfonyl Chloride (CAS 1193388-84-9)
- 3-bromo-5-nitrobenzene-1-sulfonyl chloride (CAS 1211517-87-1)
- 2-Bromo-3-nitrobenzenesulfonyl chloride (CAS 1261553-98-3)
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- 2-Bromo-5-nitrobenzenesulfonyl chloride (CAS 98130-55-3)
Recommended Standards
- 4-Bromo-2-nitrobenzene-1-sulfonyl chloride (CAS 89465-98-5)
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- 5-Ethoxycarbonyl-2-thienylzinc bromide solution 0.5 M in THF (CAS 352530-37-1)
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- 3-Amino-6-bromopyrazine-2,5-dicarbonitrile (CAS 1391026-30-4)
- 2-Bromo-3-(bromomethyl)benzaldehyde (CAS 1261724-75-7)
- 4-(1,3-Dioxaindan-5-yl)-3-cyclobutyl-1,2-oxazol-5-amine (CAS 1097012-01-5)
- 2-amino-3-cyclopentylpropan-1-ol hydrochloride (CAS 1380005-87-7)
- Risperidone Impurity 9 (CAS 158697-68-8)
- 1-((4-Chloro-1,3-dimethyl-1h-pyrazol-5-yl)methyl)-1h-pyrazol-3-amine (CAS 1492672-29-3)
- 1-(piperidin-3-yl)piperidin-2-one dihydrochloride (CAS 2060063-92-3)
- Kojitriose (CAS 74738-47-9)
- 2-((5,6,7,8-Tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4-yl)amino)phenol (CAS 401638-52-6)
- Semaglutide impurity 32 (CAS CATO-C4X-222632)
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