3-Bromopyridine-2-sulfonamide CAS 65938-87-6
| CAS No. | 65938-87-6 |
| Molecular Formula | C5H5BrN2O2S |
| Molecular Weight | 237.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromopyridine-2-sulfonamide (CAS 65938-87-6) is a high-purity analytical reference standard with the molecular formula C5H5BrN2O2S and a molecular weight of 237.07 g/mol.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, 3-Bromopyridine-2-sulfonamide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 237.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
CATO manufactures 3-Bromopyridine-2-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.
Physical & Chemical Properties
| Molecular Formula | C5H5BrN2O2S |
| Molecular Weight | 237.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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 |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Bromopyridine Standards
- 4-Bromopyridine-2-sulfonamide (CAS 1209458-42-3)
- 5-Bromopyridine-2-sulfonamide (CAS 19642-68-3)
- 2-Bromopyridine-4-sulfonamide (CAS 2648962-44-9)
- 3-Bromopyridine-4-sulfonamide (CAS 2095853-75-9)
- 5-Bromopyridine-3-sulphonamide (CAS 62009-33-0)
- 6-Bromopyridine-2-sulfonamide (CAS 856013-04-2)
- 6-Bromopyridine-3-sulfonamide (CAS 263340-08-5)
- 3-Bromopyridine-2-sulfonic acid (CAS 1209458-36-5)
Recommended Standards
- 3-Bromobenzenesulfonic acid (CAS 22033-09-6)
- 2-Bromobenzenesulfonic acid (CAS 576-92-1)
- 2-bromo-1-[1-(fluoromethyl)-2-oxabicyclo[2.1.1]hexan-4-yl]ethanone (CAS 2573214-03-4)
- 2-(4-Bromothiophen-2-yl)-2-hydroxyacetic acid (CAS 67027-94-5)
- (E)-3-(3-(3,4-dimethoxyphenyl)-1-phenyl-1H-pyrazol-4-yl)acrylic acid (CAS 381214-65-9)
- 7-Bromo-4-chlorophthalazin-1(2H)-one (CAS 1028338-57-9)
- (S)-4-Methylmorpholine-2-methanol (CAS 1159598-33-0)
- 3-(Quinolin-8-yloxy)-5-(trifluoromethyl)pyridine-2-carbonitrile (CAS 338791-72-3)
- 6-Bromo-5-chloro-7-fluorobenzo[c]isothiazol-3-amine (CAS 2230875-10-0)
- 6-(3-Fluorophenyl)-6-oxohexanoic acid (CAS 898765-65-6)
- Sodium aminosalicylate (CAS 8031-28-5)
- 4-(3-(p-Tolyl)-1,2,4-oxadiazol-5-yl)aniline (CAS 915922-80-4)
- 5-Bromo-1H-pyrrole-2-carboxylic acid (CAS 28383-57-5)
- Acetyl Hexapeptide-39 (CAS 1382088-38-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com