4-Bromo-2-chloro-1-fluorobenzene CAS 60811-21-4
| CAS No. | 60811-21-4 |
| Molecular Formula | C6H3BrClF |
| Molecular Weight | 209.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Bromo-2-chloro-1-fluorobenzene (CAS 60811-21-4), molecular formula C6H3BrClF and molecular weight 209.44 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to fluorine/chlorine/bromine substitution, an aromatic ring system, 4-Bromo-2-chloro-1-fluorobenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 209.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H3BrClF |
| Molecular Weight | 209.44 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.) | 1974 |
| Halogen Content | F/Cl/Br-containing |
Related Bromo Standards
- 1-Bromo-2-chloro-4-fluorobenzene (CAS 110407-59-5)
- 1-Bromo-3-chloro-2-fluorobenzene (CAS 144584-65-6)
- 1-Bromo-2-chloro-3-fluorobenzene (CAS 883499-24-9)
- 1-Bromo-3-chloro-5-fluorobenzene (CAS 33863-76-2)
- 1-Bromo-4-chloro-2-fluorobenzene (CAS 1996-29-8)
- 2-Bromo-1-chloro-3-fluorobenzene (CAS 309721-44-6)
- 2-Bromo-1-chloro-4-fluorobenzene (CAS 201849-15-2)
- 2-Bromo-4-chloro-1-fluorobenzene (CAS 1996-30-1)
Recommended Standards
- 4-Bromo-1-chloro-2-fluorobenzene (CAS 60811-18-9)
- 2,3,4-Trichlorobenzaldehyde (CAS 19361-59-2)
- 2,3,5-Trichlorobenzaldehyde (CAS 56961-75-2)
- 2,3,6-Trichlorobenzaldehyde (CAS 4659-47-6)
- Butyl diethoxyphosphoryl(phenyl)carbamimidothioate (CAS 76908-48-0)
- 4-Methylumbelliferyl β-D-Glucuronide Hydrate (CAS 881005-91-0)
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