3-Bromo-isoxazole-5-boronic acid pinacol ester CAS 862126-44-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 862126-44-1 |
| Molecular Formula | C9H13BBrNO3 |
| Molecular Weight | 273.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromo-isoxazole-5-boronic acid pinacol ester (CAS 862126-44-1) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C9H13BBrNO3. Molecular weight: 273.92 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C9H13BBrNO3 |
| Molecular Weight | 273.92 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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 methanol, ethanol, DMSO |
| 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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- (2-Hydroxy-4,6-bis(trifluoromethyl)phenyl)boronic acid (CAS 2557358-96-8)
- 2,3,4,5-Tetrachlorophenol acetate (CAS 4901-57-9)
- 4-(1-bromoethyl)-2,6-dichloro-5-fluoropyrimidine (CAS 188416-30-0)
- 2-Chloro-6-chloro-3-methylquinoxaline (CAS 76672-20-3)
- Ethyl 2-bromo-5-cyano-4-(difluoromethyl)benzoate (CAS 1805593-84-3)
- N-(2-methoxyethyl)-1-methyl-1H-1,2,3,4-tetrazol-5-amine (CAS 1343352-34-0)
- Glipizide EP Impurity F (CAS 192118-08-4)
- tert-butyl 1-(1-hydroxy-2-propoxyethyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate (CAS 2279552-36-0)
- 2,6-Dichloro-3-fluorobenzotrifluoride (CAS 1804514-55-3)
- Tirzepatide Impurity 58 (CAS CATO-C4X-324058)
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