5-(3-Bromophenyl)-3-(4-methoxyphenyl)isoxazole CAS 651021-72-6
| CAS No. | 651021-72-6 |
| Molecular Formula | C16H12BrNO2 |
| Molecular Weight | 330.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-(3-Bromophenyl)-3-(4-methoxyphenyl)isoxazole (CAS 651021-72-6) is a high-purity analytical reference standard with the molecular formula C16H12BrNO2 and a molecular weight of 330.18 g/mol.
Structurally, 5-(3-Bromophenyl)-3-(4-methoxyphenyl)isoxazole (C16H12BrNO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 330.18 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 5-(3-Bromophenyl)-3-(4-methoxyphenyl)isoxazole 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.
Physical & Chemical Properties
| Molecular Formula | C16H12BrNO2 |
| Molecular Weight | 330.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromophenyl Standards
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- 1-(3-Bromophenyl)-3-(1H-indol-3-yl)urea (CAS 941987-64-0)
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- N-(2-Bromophenyl)-2-cyano-3-(pyridin-3-yl)propanamide (CAS 483359-39-3)
- N-(2-Bromophenyl)-3-methylbenzofuran-2-carboxamide (CAS 325730-83-4)
- N-(4-bromophenyl)-2-cyano-3-(pyridin-3-yl)propanamide (CAS 483359-41-7)
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Recommended Standards
- 4-Bromo-N-(5-ethyl-1,3,4-thiadiazol-2-yl)-2-fluorobenzamide (CAS 930485-68-0)
- 5-(4-(Benzyloxy)-3-bromophenyl)oxazole (CAS 2364584-78-9)
- 4-(Benzyloxy)-3-bromoquinolin-2-ol (CAS 868145-21-5)
- 5-(5-Bezyloxy-2-bromophenyl)-1,3-oxazole (CAS 2364585-41-9)
- 4-(1-Methyl-1h-pyrazol-4-yl)phenol (CAS 1216007-29-2)
- (3-(Methoxycarbonyl)-4-(2-oxopyrrolidin-1-yl)phenyl)boronic acid (CAS 1071959-02-8)
- 4-Chloro-5-cyclopropoxynicotinamide (CAS 1243383-93-8)
- 2-Fluoro-5-(methoxycarbonyl)benzeneboronic acid pinacol ester, 97% (CAS 757982-31-3)
- 2,3-Dibromo-5-(difluoromethyl)-4-methoxypyridine (CAS 1805958-89-7)
- 1-Methoxy-4,5-dimethyl-2-nitrobenzene (CAS 18087-11-1)
- 3-(3-Bromophenyl)-1,2,4-oxadiazole-5-carboxylic acid (CAS 944896-66-6)
- (2S,4S)-1-(2-chloroacetyl)-4-fluoropyrrolidine-2-carbonitrile (CAS 596817-06-0)
- 2-(2,4-Dimethylpyridin-3-yl)ethan-1-amine (CAS 1393569-65-7)
- Peptide 437 (CAS CATO-CPTD788437)
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