2-Bromo-4-chloro-1-fluoro-3-methylbenzene CAS 1785149-53-2
| CAS No. | 1785149-53-2 |
| Molecular Formula | C7H5BrClF |
| Molecular Weight | 223.47 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.
2-Bromo-4-chloro-1-fluoro-3-methylbenzene (CAS 1785149-53-2) is a high-purity analytical reference standard with the molecular formula C7H5BrClF and a molecular weight of 223.47 g/mol.
Owing to fluorine/chlorine/bromine substitution, an aromatic ring system, 2-Bromo-4-chloro-1-fluoro-3-methylbenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 223.47 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).
As a certified reference material (CRM), 2-Bromo-4-chloro-1-fluoro-3-methylbenzene 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 | C7H5BrClF |
| Molecular Weight | 223.47 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.) | 1994 |
| Halogen Content | F/Cl/Br-containing |
Related Bromo Standards
- 3-Bromo-4-chloro-5-fluorotoluene (CAS 1000576-14-6)
- 1-Bromo-2-chloro-5-fluoro-3-methylbenzene (CAS 1000576-68-0)
- 4-Bromo-2-(chloromethyl)-1-fluorobenzene (CAS 1020992-68-0)
- 2-Bromo-5-chloro-4-fluorotoluene (CAS 1067882-53-4)
- 1-Bromo-5-chloro-3-fluoro-2-methylbenzene (CAS 1082040-50-3)
- 1-Bromo-3-(chloromethyl)-5-fluorobenzene (CAS 1094651-50-9)
- 5-Bromo-3-chloro-2-fluorotoluene (CAS 1160574-49-1)
- 1-Bromo-2-(chloromethyl)-3-fluorobenzene (CAS 1182357-16-9)
Recommended Standards
- 2-Bromo-3-chloro-4-fluoro-1-methylbenzene (CAS 1783823-53-9)
- 4-Bromo-3-chloro-5-fluorotoluene (CAS 1805015-21-7)
- 1-Bromo-3-chloro-5-fluoro-2-methylbenzene (CAS 1780876-62-1)
- 5-Bromo-1-chloro-3-fluoro-2-methylbenzene (CAS 1806058-46-7)
- (3-Chlorophenyl)(pyridin-4-yl)methanone (CAS 62246-94-0)
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