5-Bromo-3-fluoro-2-methoxybenzene-1-sulfonyl chloride CAS 612541-19-2
| CAS No. | 612541-19-2 |
| Molecular Formula | C7H5BrClFO3S |
| Molecular Weight | 303.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Bromo-3-fluoro-2-methoxybenzene-1-sulfonyl chloride.
CATO supplies 5-Bromo-3-fluoro-2-methoxybenzene-1-sulfonyl chloride (CAS 612541-19-2), a certified reference material (molecular formula C7H5BrClFO3S, MW 303.53 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H5BrClFO3S, 5-Bromo-3-fluoro-2-methoxybenzene-1-sulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 303.53 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.
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 | C7H5BrClFO3S |
| Molecular Weight | 303.53 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F/Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 4-bromo-5-fluoro-2-methoxybenzene-1-sulfonyl chloride (CAS 1443979-74-5)
- 5-bromo-4-fluoro-2-methoxybenzene-1-sulfonyl chloride (CAS 1692245-39-8)
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- 4-Bromo-3-fluoro-2-methoxybenzenesulfonyl chloride (CAS 2385722-44-9)
- ethyl 3-bromo-5-chloroimidazo[1,2-a]pyridine-2-carboxylate (CAS 1000018-03-0)
- Methyl 5-bromo-6-chloro-2-methyl-2H-indazole-4-carboxylate (CAS 1037841-35-2)
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