2-Bromo-5-methylbenzenesulfonic acid CAS 56919-22-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 56919-22-3 |
| Molecular Formula | C7H7BrO3S |
| Molecular Weight | 251.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-5-methylbenzenesulfonic acid (CAS 56919-22-3) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H7BrO3S. Molecular weight: 251.10 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H7BrO3S |
| Molecular Weight | 251.10 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| 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.) | 1973 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- (4-Methoxy-3,5-dimethylpyridin-2-yl)methanamine (CAS 130000-78-1)
- 2-(2,5-Dimethylphenyl)-8-methylimidazo[1,2-a]pyridine (CAS 881040-62-6)
- 1-(4-Methyl-1H-imidazol-2-yl)ethane-1,2-diol (CAS 790642-46-5)
- Tau Peptide (273-284) trifluoroacetate salt (CAS 1663490-91-2)
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 13829788188 / jacky.chen@cato-chem.com