2-Bromo-1-(3,5-difluorophenyl)ethanone CAS 220607-75-0
| CAS No. | 220607-75-0 |
| Molecular Formula | C8H5BrF2O |
| Molecular Weight | 235.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H5BrF2O, 2-Bromo-1-(3,5-difluorophenyl)ethanone contains a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 235.03 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).
2-Bromo-1-(3,5-difluorophenyl)ethanone (CAS 220607-75-0), molecular formula C8H5BrF2O and molecular weight 235.03 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 2-Bromo-1-(3,5-difluorophenyl)ethanone 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 | C8H5BrF2O |
| Molecular Weight | 235.03 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.) | 2020 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 4'-Bromo-2',3'-difluoroacetophenone (CAS 1007346-28-2)
- 3’-Bromo-2’,4’-difluoroacetophenone (CAS 1210824-63-7)
- 4-Bromo-2,5-difluoroacetophenone, 97% (CAS 123942-11-0)
- 1-(2-Bromo-4,5-difluorophenyl)ethanone (CAS 127371-55-5)
- 5-Bromo-2,4-difluoro-3-methylbenzaldehyde (CAS 1378865-38-3)
- 5-Bromo-2-(2,2-difluorocyclopropyl)pyrimidine (CAS 1393572-03-6)
- 1-(4-Bromo-3,5-difluorophenyl)ethanone (CAS 1528607-78-4)
- 1-(6-Bromo-2,3-difluorophenyl)ethanone (CAS 1542563-93-8)
Recommended Standards
- 2-(4-Bromo-2,3-difluorophenyl)acetaldehyde (CAS 887586-70-1)
- 2-Bromo-2',3'-difluoroacetophenone (CAS 886762-77-2)
- 1-(2-Bromo-3,4-difluorophenyl)ethanone (CAS 936846-32-1)
- 2-Bromo-2’,6’-difluoroacetophenone (CAS 56159-89-8)
- Alarin (rat) (CAS 909409-88-7)
- 5-Bromo-2-(cyclohexyloxy)pyridine (CAS 927202-78-6)
- [4-(sec-Butoxy)phenyl]-N-(tetrahydro-2-furanylmethyl)methanamine (CAS 1040680-59-8)
- 3-(Azepan-1-ylmethyl)-5-nitro-1H-indole (CAS 101831-95-2)
- Ethyl formylcarbamate (CAS 18804-91-6)
- 5-Butylthiophene-2-carbaldehyde (CAS 98954-25-7)
- 3,4-Dihydro-2H-spiro[naphthalene-1,4’-oxazolidine]-2’,5’-dione (CAS 30265-12-4)
- 6,7,8-Trihydroxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (CAS 756427-84-6)
- N-(2-Aminophenyl)-2-methylpropanamide (CAS 255735-87-6)
- TRAF6 Peptide trifluoroacetate salt (CAS 852805-92-6)
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