1-(5-Bromo-3-chloro-2-fluorophenyl)ethan-1-one CAS 1536939-67-9
| CAS No. | 1536939-67-9 |
| Molecular Formula | C8H5BrClFO |
| Molecular Weight | 251.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 251.48 g/mol gives 1-(5-Bromo-3-chloro-2-fluorophenyl)ethan-1-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 1-(5-Bromo-3-chloro-2-fluorophenyl)ethan-1-one (CAS 1536939-67-9), a certified reference material (molecular formula C8H5BrClFO, MW 251.48 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H5BrClFO, 1-(5-Bromo-3-chloro-2-fluorophenyl)ethan-1-one contains a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 251.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 1-(5-Bromo-3-chloro-2-fluorophenyl)ethan-1-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 | C8H5BrClFO |
| Molecular Weight | 251.48 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | F/Cl/Br-containing |
Related Bromo Standards
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Recommended Standards
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- 5-(difluoromethyl)-3-ethyl-1H-1,2,4-triazole (CAS 1247413-25-7)
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