4-Bromobenzenesulfonyl fluoride CAS 498-83-9
| CAS No. | 498-83-9 |
| Molecular Formula | C6H4BrFO2S |
| Molecular Weight | 239.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Bromobenzenesulfonyl fluoride is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Bromobenzenesulfonyl fluoride (CAS 498-83-9), molecular formula C6H4BrFO2S and molecular weight 239.06 g/mol, is a CATO reference standard with documented purity and traceability.
4-Bromobenzenesulfonyl fluoride (C6H4BrFO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system. 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Bromobenzenesulfonyl fluoride 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 | C6H4BrFO2S |
| Molecular Weight | 239.06 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1957 |
| Halogen Content | F/Br-containing |
| Sulfur Atoms | 1 |
Related Bromobenzenesulfonyl Standards
- 2-Bromobenzenesulfonyl fluoride (CAS 1373232-47-3)
- 4-Bromobenzenesulfonyl Chloride-d (CAS 133872-23-8)
- 2-Bromobenzenesulfonyl chloride 2-bromobenzene sulfonyl chloride 2-bromobenzenesulfonylchloride o-bromobenzenesulfonyl chloride 2-bromophenylsulfonyl chloride 2-bromobenzene-1-sulfonyl chloride 2-bromobenzenesulphonyl chloride 2-bromo-benzenesulfonyl chloride 2-bromosulfonyl chloride 2905-25-1 (CAS 2905-25-1)
- 4-Bromobenzenesulfonyl isocyanate (CAS 7018-74-8)
- 2-(4-Bromobenzenesulfonyl)ethan-1-amine (CAS 771584-35-1)
- 2-(3-Bromobenzenesulfonyl)ethanol (CAS 1021169-75-4)
- 4-P-bromobenzenesulfonyl chloride (CAS 139937-37-4)
- N-(2-bromobenzenesulfonyl)acetamide (CAS 1249719-17-2)
Recommended Standards
- 4,8-Dichlorobenzofuro[3,2-d]pyrimidine (CAS 294874-71-8)
- 5,8-Dichloro-4-hydroxyquinoline-3-carbonitrile (CAS 61338-26-9)
- 2,9-dichlorobenzofuro[3,2-d]pyrimidine (CAS 2772540-55-1)
- 6,8-Dichloro-4-hydroxyquinoline-3-carbonitrile (CAS 61338-34-9)
- (S)-6-Ethylpiperidin-2-one (CAS 944128-22-7)
- 3-[(2H-1,3-Benzodioxol-5-yl)methyl]-3,4-dihydro-1,2,3-benzotriazin-4-one (CAS 866009-36-1)
- 3-(Difluoromethyl)tetrahydrofuran-3-amine hydrochloride (CAS 2742653-30-9)
- Potassium (2S,3S,4S)-2,3,4,5-tetrahydroxypentanoate (CAS 160549-52-0)
- 2-Bromo-1,3-dimethoxy-5-pentylbenzene (CAS 82078-06-6)
- (3,4-Difluorophenyl)(4-((2-ethyl-1H-imidazol-1-yl)methyl)piperidin-1-yl)methanone (CAS 1351595-58-8)
- S-((2-chloropyridin-3-yl)methyl) O-ethyl carbonodithioate (CAS 1092445-02-7)
- Methyl 2-chlorobenzimidate hydrochloride (CAS 1196153-94-2)
- 7-Benzyl-2,6-bis(methylthio)-7H-purine (CAS 92495-25-5)
- Semaglutide impurity 85 (CAS CATO-C4X-222685)
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