1-Bromo-4-ethyl-2-fluorobenzene CAS 928304-44-3
| CAS No. | 928304-44-3 |
| Molecular Formula | C8H8BrF |
| Molecular Weight | 203.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Bromo-4-ethyl-2-fluorobenzene.
1-Bromo-4-ethyl-2-fluorobenzene (CAS 928304-44-3), molecular formula C8H8BrF and molecular weight 203.05 g/mol, is a CATO reference standard with documented purity and traceability.
1-Bromo-4-ethyl-2-fluorobenzene (C8H8BrF) contains fluorine/bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 1-Bromo-4-ethyl-2-fluorobenzene 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 | C8H8BrF |
| Molecular Weight | 203.05 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 |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 1-Bromo-2-(1-fluoro-ethyl)-benzene (CAS 1027513-77-4)
- 1-Bromo-3-(1-fluoroethyl)benzene (CAS 1043689-20-8)
- 2-bromo-1-ethyl-3-fluorobenzene (CAS 1369889-90-6)
- 1-Bromo-3-ethyl-5-fluorobenzene (CAS 1369947-95-4)
- 2-Bromo-5-fluoro-1,3-dimethylbenzene (CAS 14659-58-6)
- 1-bromo-4-(1-fluoroethyl)benzene (CAS 159298-87-0)
- 1-Bromo-3-fluoro-2,5-dimethylbenzene (CAS 1780924-57-3)
- 1-Bromo-5-fluoro-2,4-dimethylbenzene (CAS 1780959-62-7)
Recommended Standards
- 1-Bromo-4-(fluoromethyl)-2-methylbenzene (CAS 2244085-01-4)
- 1-Bromo-4-fluoro-2,5-dimethylbenzene (CAS 51760-04-4)
- 1-Bromo-3-(fluoromethyl)-5-methylbenzene (CAS 2244087-79-2)
- 2-(Bromomethyl)-1-fluoro-3-methylbenzene (CAS 886502-18-7)
- L-Glutamato copper (CAS 15322-26-6)
- 1-(4-Bromo-2-chlorobenzyl)piperidin-4-one (CAS 1057281-87-4)
- 1,3,9-Tribromodibenzo[b,d]furan (CAS 617707-42-3)
- 4-(3-Chlorophenyl)-2-methyl-2,4,5,6-tetrahydropyrrolo[2,3-c]pyrazol-3-ol (CAS 1707735-67-8)
- (S)-1-(2-fluoro-5-(trifluoromethyl)phenyl)-2-methoxyethan-1-amine (CAS 1270100-92-9)
- 1-(Bromomethyl)-3,4-dichloro-2-methoxybenzene (CAS 1936194-61-4)
- (1s)-1-[3-(3-fluorophenyl)-1,2,4-oxadiazol-5-yl]ethan-1-ol (CAS 1568024-49-6)
- (1S,3S)-3-methyl-8-azaspiro[4.5]Decan-1-amine (CAS 2306247-36-7)
- (1S,5R,7S)-2-Oxabicyclo[3.2.0]heptan-7-amine (CAS 1932196-89-8)
- Insulin Degludec impurity 4 (CAS CATO-C4X-21574)
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