| CAS No. | 1805342-99-7 |
| Molecular Formula | C6H4BrClF2N2O2S |
| Molecular Weight | 321.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO manufactures 2-Bromo-3-chloro-5-(difluoromethyl)pyridine-4-sulfonamide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
2-Bromo-3-chloro-5-(difluoromethyl)pyridine-4-sulfonamide (CAS 1805342-99-7) is a high-purity analytical reference standard with the molecular formula C6H4BrClF2N2O2S and a molecular weight of 321.53 g/mol.
2-Bromo-3-chloro-5-(difluoromethyl)pyridine-4-sulfonamide (C6H4BrClF2N2O2S) 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. It is notably hygroscopic, 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
| Molecular Formula | C6H4BrClF2N2O2S |
| Molecular Weight | 321.53 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1995 |
| Halogen Content | F/Cl/Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |