5-(2-Bromo-phenyl)-3-methyl-isoxazole-4-carboxylic acid methyl ester CAS 1355334-90-5
| CAS No. | 1355334-90-5 |
| Molecular Formula | C12H10BrNO3 |
| Molecular Weight | 296.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-(2-Bromo-phenyl)-3-methyl-isoxazole-4-carboxylic acid methyl ester meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
5-(2-Bromo-phenyl)-3-methyl-isoxazole-4-carboxylic acid methyl ester (CAS 1355334-90-5) is a high-purity analytical reference standard with the molecular formula C12H10BrNO3 and a molecular weight of 296.12 g/mol.
Based on its molecular formula C12H10BrNO3, 5-(2-Bromo-phenyl)-3-methyl-isoxazole-4-carboxylic acid methyl ester contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 296.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H10BrNO3 |
| Molecular Weight | 296.12 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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 chloroform, dichloromethane, ethyl acetate, 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 5-(3-Bromo-phenyl)-3-methyl-isoxazole-4-carboxylic acid methyl ester (CAS 1355334-84-7)
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- 8-Bromo-7-methoxyquinoline-2-carbohydrazide (CAS 1355232-32-4)
- 4-Bromo-8-methoxy-6-methylquinoline-3-carboxylic acid (CAS 1378259-80-3)
- 1-Bromo-4-fluoro-2-(trifluoromethyl)benzene (CAS 40161-55-5)
- 2-(3-(3-Methoxyphenyl)propanoyl)benzothialdehyde (CAS 898774-60-2)
- 5-[(11bR)-9,14-Diiododinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl]-5H-dibenz[b,f]azepine (CAS 2757287-31-1)
- 3-chloro-6-(pyrrolidin-3-yloxy)pyridazine (CAS 1250093-76-5)
- Halcinonide Impurity N3 (CAS 2414269-43-3)
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- Semaglutide impurity 22(OtBu-Ste-γGlu(OtBu)-AEEA-AEEA-OH) (CAS 1118767-16-0)
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