4-Bromo-3-(difluoromethyl)pyridine-2-sulfonyl chloride CAS 1803707-53-0
| CAS No. | 1803707-53-0 |
| Molecular Formula | C6H3BrClF2NO2S |
| Molecular Weight | 306.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C6H3BrClF2NO2S, 4-Bromo-3-(difluoromethyl)pyridine-2-sulfonyl chloride contains an amide group, 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 306.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-Bromo-3-(difluoromethyl)pyridine-2-sulfonyl chloride (CAS 1803707-53-0), molecular formula C6H3BrClF2NO2S and molecular weight 306.51 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C6H3BrClF2NO2S |
| Molecular Weight | 306.51 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1995 |
| Halogen Content | F/Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- 1242879-21-5 4-(4-Methylbenzyl)-1,2,3,4-tetrahydropyrido[2,3-b]pyrazine MFCD15732208 (CAS 1242879-21-5)
- propionic acid (CAS 79-09-4)
- 4-Methoxy-2-(methylthio)pyrimidin-5-ylboronic acid (CAS 2377607-89-9)
- 2-((4-(Tert-butyl)benzyl)thio)-4,5-diphenyl-1-propyl-1H-imidazole (CAS 339277-19-9)
- 4-Hydrazono-2-(thiophen-2-yl)-1,4-dihydropyrimidine (CAS 125926-68-3)
- (5-Methylpyrimidin-2-yl)boronic acid (CAS 1352548-73-2)
- Aclidinium bromide Impurity 10 (CAS 1708930-15-7)
- Acetyl Hexapeptide-39 (CAS 1382088-38-1)
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