3,4-Dibromobenzenesulfonamide CAS 477843-34-8
| CAS No. | 477843-34-8 |
| Molecular Formula | C6H5Br2NO2S |
| Molecular Weight | 314.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4-Dibromobenzenesulfonamide (CAS 477843-34-8), molecular formula C6H5Br2NO2S and molecular weight 314.98 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 3,4-Dibromobenzenesulfonamide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 314.98 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 3,4-Dibromobenzenesulfonamide 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 | C6H5Br2NO2S |
| Molecular Weight | 314.98 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.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dibromobenzenesulfonamide Standards
Recommended Standards
- 2,5-Dibromobenzene-1-sulfonamide (CAS 7467-11-0)
- Ethyl 2,4-dibromothiazole-5-carboxylate (CAS 848500-45-8)
- Ethyl 2,5-dibromo-4-thiazolecarboxylate (CAS 208264-60-2)
- 4-Bromo-2-chloro-3-cyanobenzene-1-sulfonyl chloride (CAS 1805581-04-7)
- 4-(trans-4-Butylcyclohexyl)benzoic acid (CAS 83626-35-1)
- (S)-Methyl 3-hydroxy-2-oleamidopropanoate (CAS 1246302-98-6)
- 3-(1-(Furan-3-carbonyl)pyrrolidin-3-yl)thiazolidine-2,4-dione (CAS 1790201-50-1)
- 7-methyl-5,6,9-triazatricyclo[7.3.0.0²,⁶]dodeca-1(12),2,4,7,10-pentaene (CAS 1685266-64-1)
- 7-Fluoroindole-6-carboxylic Acid (CAS 908600-75-9)
- 3-Amino-3-(4-fluorophenyl)-1-propanol (CAS 612532-52-2)
- Tris(cyclopentadienyl)holmium(III), 98% (CAS 1272-22-6)
- 83012-10-6 2,8-Bis(trifluoromethyl)-4-quinolyl(1-oxypyrid-2-yl)methane MFCD10698487 (CAS 83012-10-6)
- Palonosetron Impurity 30 (CAS CATO-C4X-110530)
- Semaglutide Impurity 130 (CAS 1188328-40-6)
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