2-Bromo-5-(chlorosulfonyl)benzoic acid CAS 3285-31-2
| CAS No. | 3285-31-2 |
| Molecular Formula | C7H4BrClO4S |
| Molecular Weight | 299.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2-Bromo-5-(chlorosulfonyl)benzoic acid (C7H4BrClO4S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 2-Bromo-5-(chlorosulfonyl)benzoic acid (CAS 3285-31-2), a certified reference material (molecular formula C7H4BrClO4S, MW 299.53 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H4BrClO4S |
| Molecular Weight | 299.53 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1957 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 3-Bromo-5-(chlorosulfonyl)benzoic acid (CAS 1183308-29-3)
- 2-bromo-4-(chlorosulfonyl)benzoic acid (CAS 1375473-34-9)
- 3-Bromo-7-chloro-6-fluoro-5H-pyrido[3,2-b]indole (CAS 1800346-76-2)
- 3-Bromo-7-chloro-8-fluoro-5H-pyrido[3,2-b]indole (CAS 1800346-81-9)
- 3-Bromo-4-(chlorosulfonyl)benzoic acid (CAS 503446-59-1)
- 4-Bromo-3-chlorosulfonyl-benzoic acid (CAS 50803-23-1)
- 2-Bromo-1-(3-chloropropyl)-3-(difluoromethoxy)benzene (CAS 1806348-79-7)
- 6-Bromo-8-chlorobenzofuro[3,2-d]pyrimidin-4(3H)-one (CAS 2251053-06-0)
Recommended Standards
- 328000-16-4 Magnesium bromide 2-(benzyloxy)benzen-1-ide (1/1/1) DTXSID60525481 (CAS 328000-16-4)
- 4-Benzyloxyphenyl magnesium bromide solution (CAS 120186-59-6)
- 6-Chloro-3-(3,5-dichlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 1097132-47-2)
- 6-Chloro-2-(2,3-dichlorophenyl)oxazolo[5,4-b]pyridine (CAS 1354749-70-4)
- 2-{5-[(1E)-1-{[(2-chloro-4-fluorophenyl)methoxy]imino}ethyl]thiophen-2-yl}acetonitrile (CAS 337924-55-7)
- 2-((5-(2-Bromophenyl)-4-phenyl-4H-1,2,4-triazol-3-yl)thio)-N-(o-tolyl)acetamide (CAS 332388-15-5)
- 5-Bromo-4(3H)-pyrimidone (CAS 19808-30-1)
- 4-(2,4-difluorophenoxy)-2-(trifluoromethyl)quinazoline (CAS 337924-97-7)
- 1-(2-(Diethylamino)ethyl)-4-(3-fluoro-4-methoxybenzoyl)-3-hydroxy-5-(pyridin-4-yl)-1H-pyrrol-2(5H)-one (CAS 618074-89-8)
- (1-((Benzyloxy)methyl)cyclopentyl)methanesulfonyl chloride (CAS 1483393-08-3)
- 5-Bromo-6-methylpicolinoyl chloride (CAS 1310416-51-3)
- 2-([1,1-Biphenyl]-2-yloxy)aniline (CAS 2688-92-8)
- (3R,4S)-1-(tert-Butoxycarbonyl)-4-methoxypyrrolidine-3-carboxylic acid (CAS 2382100-41-4)
- Peptide Impurity 34 (CAS 21282-09-7)
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