4-Bromo-5-(bromomethyl)-3-methylisoxazole CAS 53257-36-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 53257-36-6 |
| Molecular Formula | C5H5Br2NO |
| Molecular Weight | 254.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-5-(bromomethyl)-3-methylisoxazole (CAS 53257-36-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H5Br2NO. Molecular weight: 254.91 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H5Br2NO |
| Molecular Weight | 254.91 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 2,6-Dibromophenol-3,4,5-d3 (CAS 1219803-14-1)
- 3,4-Dibromo-1-methyl-1H-pyrazol-5-amine (CAS 1426958-35-1)
- 1,1'-Dichloroferrocene (CAS 1293-67-0)
- 6-AMINO-5-BROMO-3-NITROPYRIDINE-2-CARBOXAMIDE (CAS 267243-46-9)
- 3-Amino-N-(4-(trifluoromethoxy)phenyl)-6,7,8,9-tetrahydro-5H-cyclohepta[b]thieno[3,2-e]pyridine-2-carboxamide (CAS 445382-70-7)
- 1,2,3,4,5-Pentafluoro-6-(trichloromethoxy)benzene (CAS 6161-53-1)
- 3-bromo-2-ethenylfuran (CAS 1690740-99-8)
- 5-[(4-Hydroxyphenyl)methyl]-5-methylimidazolidine-2,4-dione (CAS 13500-25-9)
- 5-(3-Aminoprop-1-yn-1-yl)-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (CAS 158665-42-0)
- Tirzepatide Impurity 51 (CAS CATO-C4X-324051)
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