4-(2-Bromo-4-chlorophenoxy)-3-methylisoxazolo[5,4-d]pyrimidine CAS 672925-31-4
| CAS No. | 672925-31-4 |
| Molecular Formula | C12H7BrClN3O2 |
| Molecular Weight | 340.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-(2-Bromo-4-chlorophenoxy)-3-methylisoxazolo[5,4-d]pyrimidine (CAS 672925-31-4), a certified reference material (molecular formula C12H7BrClN3O2, MW 340.56 g/mol) for analytical method development and quality control.
The molecular framework of 4-(2-Bromo-4-chlorophenoxy)-3-methylisoxazolo[5,4-d]pyrimidine (C12H7BrClN3O2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H7BrClN3O2 |
| Molecular Weight | 340.56 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
- n-(3-Bromo-5-chloro-2-(difluoromethoxy)phenyl)cyclopropanecarboxamide (CAS 1030219-17-0)
- 5-Bromo-2-(5-chloro-1H-indol-2-yl)-3-fluorophenol (CAS 1370468-13-5)
- 3-Bromo-4-((2-chloro-4-fluorobenzyl)oxy)benzonitrile (CAS 1706453-79-3)
- 4-Bromo-2-(4-chloro-2-fluorophenyl)isoindolin-1-one (CAS 2679763-35-8)
- 7-Bromo-5-oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepine-9-sulfonyl Chloride (CAS 1989659-72-4)
- 2-(4-Bromo-3-methyl-5-(trifluoromethyl)pyrazol-1-yl)-6-chloropyridine (CAS 1187386-13-5)
- Benzyl (4-bromo-2-chlorophenyl)carbamate (CAS 1259064-47-5)
- Benzyl (2-bromo-4-chlorophenyl)carbamate (CAS 1259066-24-4)
Recommended Standards
- Bis(triethoxysilyl)methane (CAS 18418-72-9)
- Bis(3-methylthio-1,2,4-thiadiazol-5-ylthio)methane (CAS 444791-15-5)
- N-Tetradecylquinolin-4-amine (CAS 58911-15-2)
- 8-Chloro-1-iodophenazine (CAS 2367002-69-3)
- 3-((2-Hydroxyethyl)sulfonyl)phenol (CAS 128647-66-5)
- 1-(2-Hydroxy-4-((tetrahydro-2H-pyran-2-yl)oxy)phenyl)-2-(4-((tetrahydro-2H-pyran-2-yl)oxy)phenyl)ethanone (CAS 130064-21-0)
- 1H-pyrazolo[4,3-c]pyridine-6-carboxylic acid (CAS 1256802-03-5)
- 3-Hydroxy-4-(1-naphthyloxy)-butanenitrile (CAS 20804-76-6)
- 5-Aminothiazolo[4,5-d]pyrimidine-2(3H)-thione (CAS 892498-86-1)
- (1-(tert-Butoxycarbonyl)-6-methyl-1H-indol-2-yl)boronic acid (CAS 850568-51-3)
- Cyclopentyl 3-amino-4-methoxybenzoate (CAS 1071344-96-1)
- 2,3-Difluoro-5-methoxy-benzoic acid (CAS 1262197-31-8)
- 6-(Butyl(methyl)amino)pyridazine-3-carboxylic acid (CAS 1179950-13-0)
- Semaglutide impurity 108 (CAS CATO-C4X-2226108)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com