3,4-Dibromo-5-fluoroacetophenone CAS 1803776-35-3
| CAS No. | 1803776-35-3 |
| Molecular Formula | C8H5Br2FO |
| Molecular Weight | 295.93 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.
3,4-Dibromo-5-fluoroacetophenone (CAS 1803776-35-3) is a high-purity analytical reference standard with the molecular formula C8H5Br2FO and a molecular weight of 295.93 g/mol.
Based on its molecular formula C8H5Br2FO, 3,4-Dibromo-5-fluoroacetophenone 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 295.93 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H5Br2FO |
| Molecular Weight | 295.93 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.) | 1995 |
| Halogen Content | F/Br-containing |
Related Dibromo Standards
- 2,5-Dibromo-3-fluoroacetophenone (CAS 1803715-96-9)
- 2,4-Dibromo-3-fluoroacetophenone (CAS 1803836-80-7)
- 3,4-Dibromo-2-fluoroacetophenone (CAS 1804416-30-5)
- 2,6-Dibromo-4-fluoroacetophenone (CAS 1804931-51-8)
- 2,4-Dibromo-6-fluoroacetophenone (CAS 1805122-12-6)
- 2,3-Dibromo-5-fluoroacetophenone (CAS 1806294-60-9)
- 2,5-Dibromo-4-fluoroacetophenone (CAS 1806349-76-7)
- 2,6-Dibromo-3-fluoroacetophenone (CAS 1806352-68-0)
Recommended Standards
- 2-Bromo-1-(2-bromo-5-fluorophenyl)ethan-1-one (CAS 1427446-94-3)
- 2-Bromo-1-(5-bromo-2-fluorophenyl)ethan-1-one (CAS 1427413-65-7)
- 2-Bromo-1-(3-bromo-5-fluorophenyl)ethan-1-one (CAS 1379358-71-0)
- 2-Bromo-1-(3-bromo-2-fluorophenyl)ethanone (CAS 1204333-47-0)
- 4-(Aminomethyl)-1-methylpyrrolidin-2-one hydrochloride (CAS 1426291-29-3)
- (R)-1,3'-Bipyrrolidine hydrochloride (CAS 1061682-84-5)
- 2-(4-Bromophenyl)-5-(propan-2-yl)-1,3,4-oxadiazole (CAS 1251318-52-1)
- Selexipag Impurity 33 (CAS CATO-C4X-196133)
- 5-Bromo-2-(3,3-difluoropiperidin-1-yl)benzaldehyde (CAS 1774893-59-2)
- 2-[methyl(2-nitrophenyl)amino]acetic acid (CAS 31918-24-8)
- 9-Amino-1,2,3,4-tetrahydroacridin-1-ol Maleate (CAS 118909-22-1)
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- 5,7-Difluoro-3-hydroxyquinolin-2(1H)-one (CAS 1150618-29-3)
- (Des-His1,Glu?)-Glucagon (1-29) amide (human, rat, porcine) (CAS 110084-95-2)
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