7-Bromo-5-fluoro-3-methylbenzo[d]oxazol-2(3H)-one CAS 1226070-00-3
| CAS No. | 1226070-00-3 |
| Molecular Formula | C8H5BrFNO2 |
| Molecular Weight | 246.03 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.
7-Bromo-5-fluoro-3-methylbenzo[d]oxazol-2(3H)-one (CAS 1226070-00-3), molecular formula C8H5BrFNO2 and molecular weight 246.03 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H5BrFNO2, 7-Bromo-5-fluoro-3-methylbenzo[d]oxazol-2(3H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 246.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a certified reference material (CRM), 7-Bromo-5-fluoro-3-methylbenzo[d]oxazol-2(3H)-one 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 | C8H5BrFNO2 |
| Molecular Weight | 246.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1990 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
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Recommended Standards
- 2-(2-iodoethyl-<SUP>13</SUP>C<SUB>2</SUB>)-2-methyl-<SUP>13</SUP>C-dioxolane-2- <SUP>13</SUP>C (CAS 101025-40-5)
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- 3,5-Difluoro-4-(2-methoxyethoxy)-2-methylphenylboronic acid (CAS 2096336-94-4)
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- 4-(2-Methylbenzoyl)quinoline (CAS 858195-29-6)
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- N-(3-Amino-2-methylphenyl)-2-(2-methoxyphenoxy)-propanamide (CAS 1020056-62-5)
- Methyl 2-methyl-3-oxoheptanoate (CAS 1519526-49-8)
- 3-((4,6-Dimethylpyrimidin-2-yl)oxy)benzoic acid (CAS 927981-91-7)
- 2-Methoxy-6,7-dihydro-5H-pyrrolo[3,4-d]pyrimidine (CAS 947305-13-7)
- (4-Boc-Amino)-2,3-difluorophenylboronic acid (CAS 2377608-58-5)
- Methyl 3-(1H-pyrrol-1-yl)-4-(thiomorpholin-4-yl)benzoate (CAS 882747-91-3)
- D-Ile27-Tirzepatide (CAS CATO-CPTD788907)
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