5-Bromobenzo[d]isoxazol-3(2H)-one CAS 65685-50-9
| CAS No. | 65685-50-9 |
| Molecular Formula | C7H4BrNO2 |
| Molecular Weight | 214.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 214.02 g/mol gives 5-Bromobenzo[d]isoxazol-3(2H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5-Bromobenzo[d]isoxazol-3(2H)-one (CAS 65685-50-9), a certified reference material (molecular formula C7H4BrNO2, MW 214.02 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H4BrNO2, 5-Bromobenzo[d]isoxazol-3(2H)-one contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 214.02 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 5-Bromobenzo[d]isoxazol-3(2H)-one 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 | C7H4BrNO2 |
| Molecular Weight | 214.02 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromobenzo Standards
- 6-Bromobenzo[c]isoxazol-3(1H)-one (CAS 1260799-00-5)
- 5-Bromobenzo[c]isoxazol-3(1H)-one (CAS 1260851-15-7)
- 4-Bromobenzo[d]isoxazol-3(2H)-one (CAS 1379310-99-2)
- 4-Bromobenzo[d]oxazol-2(3H)-one (CAS 14022-96-9)
- 4-Bromobenzo[c]isoxazol-3(1H)-one (CAS 1780441-92-0)
- 7-Bromobenzo[c]isoxazol-3(1H)-one (CAS 1784307-64-7)
- 2-Bromobenzo[d]oxazol-5-ol (CAS 1803740-51-3)
- 6-Bromobenzo[d]isoxazol-4-ol (CAS 2167936-37-8)
Recommended Standards
- 5-Bromo-3,7-dihydro-4H-pyrrolo[2,3-d]pyrimidin-4-one (CAS 22276-97-7)
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- 6-Bromo-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one (CAS 425702-91-6)
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- Dicyclohexyl(2',6'-diisopropyl-3,6-dimethoxy-[1,1'-biphenyl]-2-yl)phosphane (CAS 1262046-23-0)
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- tert-butyl (R)-(2,5-dimethyl-4-(1-methyl-1,2,3,6-tetrahydropyridin-4-yl)-2,3-dihydrobenzofuran-7-yl)carbamate (CAS CATO-C4X-30133)
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Why CATO?
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