1-Bromo-4-fluoro-2,5-dimethylbenzene CAS 51760-04-4
| CAS No. | 51760-04-4 |
| 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-fluoro-2,5-dimethylbenzene.
1-Bromo-4-fluoro-2,5-dimethylbenzene (CAS 51760-04-4), molecular formula C8H8BrF and molecular weight 203.05 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to fluorine/bromine substitution, an aromatic ring system, 1-Bromo-4-fluoro-2,5-dimethylbenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 203.05 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).
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-fluoro-2,5-dimethylbenzene 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.) | 1971 |
| 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-ethyl-2-fluorobenzene (CAS 928304-44-3)
- 2-(Bromomethyl)-1-fluoro-3-methylbenzene (CAS 886502-18-7)
- 1-Bromo-4-(fluoromethyl)-2-methylbenzene (CAS 2244085-01-4)
- 2,4-Dimethyl-3-fluoro-bromobenzene (CAS 26584-26-9)
- PIK-90 (CAS 677338-12-4)
- 2-(4-Fluorophenyl)-2,5,5-trimethylmorpholine (CAS 1017482-51-7)
- 3-(4-Methoxyphenyl)pyrazin-2-amine (CAS 1482262-91-8)
- 3-Phenyl-N-(1-(3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)propanamide (CAS 1326933-49-6)
- Iopamidol EP Impurity A (CAS 60166-98-5)
- Verticillatine (CAS 10247-54-8)
- 7-(4-Bromophenyl)-7-oxoheptanoic acid (CAS 898787-83-2)
- 2-Bromo-6-chloro-4-picoline (CAS 157329-89-0)
- 5-[4-(Trifluoromethoxy)phenyl]-5H-thieno[2,3-c]pyrrole (CAS 338780-82-8)
- Myelin Basic Protein (85-99) Peptide Antagonist (CAS 444305-16-2)
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