4-Bromo-2-chloro-5-(chlorosulfonyl)benzoic acid CAS 1157673-11-4
| CAS No. | 1157673-11-4 |
| Molecular Formula | C7H3BrCl2O4S |
| Molecular Weight | 333.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 4-Bromo-2-chloro-5-(chlorosulfonyl)benzoic acid (CAS 1157673-11-4), a certified reference material (molecular formula C7H3BrCl2O4S, MW 333.97 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H3BrCl2O4S, 4-Bromo-2-chloro-5-(chlorosulfonyl)benzoic acid contains 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 333.97 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H3BrCl2O4S |
| Molecular Weight | 333.97 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| 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.) | 1989 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
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Recommended Standards
- Methyl 3,6-dibromo-2H-indazole-4-carboxylate (CAS 885523-87-5)
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- 4,5-Dibromo-2-(difluoromethoxy)benzenethiol (CAS 1803789-16-3)
- methyl 2,3-dibromoimidazo[1,2-a]pyridine-6-carboxylate (CAS 1803566-89-3)
- 3-((2-Fluoropyridin-4-yl)oxy)cyclobutan-1-amine (CAS 1823567-92-5)
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- 3-((3-Fluorophenyl)amino)-2-(naphthalen-1-yl)-1H-inden-1-one (CAS 1024474-09-6)
- 2-(((5-Bromothiophen-2-yl)methyl)amino)propane-1,3-diol (CAS 1494993-40-6)
- (R)-N-Methyl-2,2-dimethyl-1-trifluoromethyl-propylamine (CAS 1389320-22-2)
- 4-Pyridin-3-ylphenol (CAS 68223-13-2)
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- N6-(L-lysyl)-L-lysine Trihydrochloride (CAS CATO-CPTD788360)
- 4-[2-(4-Morpholinyl)ethoxy]benzoic acid (CAS 134599-45-4)
- Glu17-Semaglutide (CAS CATO-C4X-2226209)
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