2-Bromoethyl 4-methylbenzenesulfonate CAS 19263-21-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 19263-21-9 |
| Molecular Formula | C9H11BrO3S |
| Molecular Weight | 279.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromoethyl 4-methylbenzenesulfonate (CAS 19263-21-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H11BrO3S. Molecular weight: 279.15 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H11BrO3S |
| Molecular Weight | 279.15 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 |
| 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.) | 1962 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 1-(4-Bromophenyl)-3-(4-fluorophenyl)-1H-pyrazole-5-carboxylic acid (CAS 618383-15-6)
- 8-Hydroxyquinoline-3-carboxylic acid (CAS 911109-16-5)
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- 3-[(2-chloro-4-fluorophenyl)methoxy]benzaldehyde (CAS 588681-49-6)
- Ethyl 5-nitro-7-(trifluoromethyl)benzo[d]thiazole-2-carboxylate (CAS 40160-45-0)
- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
Why CATO?
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