4-Bromo-5-phenylisoxazole CAS 10557-73-0
| CAS No. | 10557-73-0 |
| Molecular Formula | C9H6BrNO |
| Molecular Weight | 224.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 224.05 g/mol gives 4-Bromo-5-phenylisoxazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Bromo-5-phenylisoxazole (CAS 10557-73-0), a certified reference material (molecular formula C9H6BrNO, MW 224.05 g/mol) for analytical method development and quality control.
Structurally, 4-Bromo-5-phenylisoxazole (C9H6BrNO) 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 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 224.05 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Bromo-5-phenylisoxazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H6BrNO |
| Molecular Weight | 224.05 g/mol |
| Appearance | Off-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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 4-Bromo-3-phenylisoxazole (CAS 101774-26-9)
- 6-Bromo-1H-indole-2-carbaldehyde (CAS 105191-12-6)
- 3-Bromo-5-phenylisoxazole (CAS 10557-74-1)
- 2-Bromo-4-phenyloxazole (CAS 1060816-19-4)
- 6-Bromo-1H-indole-4-carbaldehyde (CAS 107650-25-9)
- 4-Bromo-2-(furan-2-yl)pyridine (CAS 1086381-47-6)
- 3-Bromo-5-hydroxyquinoline (CAS 1123738-15-7)
- 4-Bromo-2-(furan-3-yl)pyridine (CAS 1142194-20-4)
Recommended Standards
- 6-Bromoisoquinolin-3(2H)-one (CAS 1031927-91-9)
- 8-Bromoisoquinolin-5-ol (CAS 1057962-05-6)
- 6-Bromoisoquinolin-4-ol (CAS 1015070-56-0)
- Tinidazole Impurity 26 (CAS CATO-C4X-193026)
- Tert-butyl 1-methylhexahydropyrrolo[3,4-c]pyrrole-2(1H)-carboxylate (CAS 1784049-94-0)
- N-(4-Aminophenyl)methanesulfonamide hydrochloride (CAS 57005-04-6)
- N-Methyltryptamine (CAS 61-49-4)
- 2-(2-Chlorophenyl)-1-[(4-chlorophenyl)methanesulfonyl]propan-2-ol (CAS 339276-82-3)
- Ethosuximide impurity 9 (CAS CATO-C4X-26259)
- 4-(Ethoxycarbonyl)thiophene-2-boronic Acid Pinacol Ester (CAS 960116-27-2)
- (3S,4R)-1-(tert-Butoxycarbonyl)-3-methylpiperidine-4-carboxylic acid (CAS 1821782-98-2)
- (Z)-4-(Phenylamino)pent-3-en-2-one (CAS 26567-78-2)
- 2-[3-(2-methylpropyl)-1,2,4-oxadiazol-5-yl]acetic acid (CAS 1245534-03-5)
- D-[Ala]24-Semaglutide (CAS CATO-C4X-2226126)
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