5-Bromo-2-fluoro-m-xylene CAS 99725-44-7
| CAS No. | 99725-44-7 |
| Molecular Formula | C8H8BrF |
| Molecular Weight | 203.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Bromo-2-fluoro-m-xylene is closely related to fluorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Bromo-2-fluoro-m-xylene (CAS 99725-44-7), molecular formula C8H8BrF and molecular weight 203.05 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H8BrF, 5-Bromo-2-fluoro-m-xylene contains fluorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 203.05 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 5-Bromo-2-fluoro-m-xylene 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.) | 1985 |
| 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)
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Recommended Standards
- 4-Fluoro-2-methylbenzyl Bromide (CAS 862539-91-1)
- 6-Bromo-1-fluoro-2,4-dimethylbenzene (CAS 344-16-1)
- 4-Bromo-2-ethyl-1-fluorobenzene (CAS 627463-25-6)
- 2-(Bromomethyl)-4-fluoro-1-methylbenzene (CAS 261951-71-7)
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- 5-Aminopyridine-3-sulfonamide (CAS 62009-21-6)
- 6-Chloro-3-fluoro-2-methoxybenzaldehyde (CAS 1350325-23-3)
- 2-(Pyrrolidin-1-yl)-4-(trifluoromethyl)thiazole-5-carboxylic acid (CAS 1227070-34-9)
- 5-Chloro-6-ethynylpyridin-3-amine (CAS 1824123-67-2)
- N1-methyl-N1-(3-(trifluoromethyl)benzyl)ethane-1,2-diamine (CAS 1096795-66-2)
- tert-Butyl (R)-(3-oxo-1-(thiophen-3-yl)propyl)carbamate (CAS 2137144-88-6)
- 3-Amino-6-cyclopropyl-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 893755-90-3)
- Protein Kinase C (19-36) Peptide (CAS 113731-96-7)
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