4-(Bromomethyl)isoxazole CAS 6455-40-9
| CAS No. | 6455-40-9 |
| Molecular Formula | C4H4BrNO |
| Molecular Weight | 161.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-(Bromomethyl)isoxazole (CAS 6455-40-9) is a high-purity analytical reference standard with the molecular formula C4H4BrNO and a molecular weight of 161.98 g/mol.
The molecular framework of 4-(Bromomethyl)isoxazole (C4H4BrNO) is characterized by an amide group, a hydroxyl group, an ether linkage, 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.
Physical & Chemical Properties
| Molecular Formula | C4H4BrNO |
| Molecular Weight | 161.98 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 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.) | 1958 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromomethyl Standards
- 2-(Bromomethyl)oxazole (CAS 1065073-35-9)
- 4-(Bromomethyl)oxazole (CAS 1065073-37-1)
- 5-(Bromomethyl)oxazole (CAS 127232-42-2)
- 3-(Bromomethyl)isoxazole (CAS 76632-20-7)
- 5-BROMOMETHYL-ISOXAZOLE (CAS 69735-35-9)
- 5-(Bromomethyl)-1H-1,2,4-triazole (CAS 849415-42-5)
- 2-(bromomethyl)butanenitrile (CAS 1275469-70-9)
- 1-(bromomethyl)-3-methylenecyclobutane (CAS 10555-46-1)
Recommended Standards
- 3-Bromo-4-methylisoxazole (CAS 903131-37-3)
- 4-Bromo-5-methylisoxazole (CAS 7064-37-1)
- 3-bromo-1,2-dihydropyrrol-5-one (CAS 947407-86-5)
- 5-Bromo-4-methyloxazole (CAS 929094-30-4)
- 5-Chloro-4-(4-methyl-3-nitrophenyl)pyridazin-3(2h)-one (CAS 1245646-50-7)
- Pyrene-4,5-dione, 97% (CAS 6217-22-7)
- O-Acetyl-(-)-norscopolamine (CAS 5027-68-9)
- (<I>R</I>)-(+)-1,1′-binaphthyl-2,2′-diamine (CAS 18741-85-0)
- (3,3-Dimethoxy-1-{[(4-methylbenzenesulfonyl)oxy]methyl}cyclobutyl)methyl 4-methylbenzene-1-sulfonate (CAS 1023815-74-8)
- Diethyl ((1R)-(6-methoxyquinolin-4-yl)(5-vinylquinuclidin-2-yl)methyl)phosphoramidate (CAS 1355995-83-3)
- 2-Aminobenzene-1,3-dicarbonitrile (CAS 63069-52-3)
- 5-chloro-N-propyl-1,2-benzoxazol-3-amine (CAS 1344687-63-3)
- 2-Aminopyrimidine-5-carbonyl bromide (CAS 124491-44-7)
- α Bag Cell Peptide (1-9) (CAS 87549-52-8)
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