1,3,4-Tribromo-2,5-difluorobenzene CAS 128259-69-8
| CAS No. | 128259-69-8 |
| Molecular Formula | C6HBr3F2 |
| Molecular Weight | 350.78 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.
1,3,4-Tribromo-2,5-difluorobenzene (CAS 128259-69-8) is a high-purity analytical reference standard with the molecular formula C6HBr3F2 and a molecular weight of 350.78 g/mol.
Owing to fluorine/bromine substitution, an aromatic ring system, 1,3,4-Tribromo-2,5-difluorobenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 350.78 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 1,3,4-Tribromo-2,5-difluorobenzene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6HBr3F2 |
| Molecular Weight | 350.78 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| 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.) | 1993 |
| Halogen Content | F/Br-containing |
Related Tribromo Standards
- 1,2,3-Tribromo-4,5-difluorobenzene (CAS 811713-80-1)
- 2,4,6-Tribromo-3,5-difluoropyridine (CAS 30841-93-1)
- 3,4,5-Tribromo-1-nitro-1H-pyrazole (CAS 104599-40-8)
- 1,3,5-Tribromo-2-chlorobenzene (CAS 78904-10-6)
- 2,3,5-Tribromo-4-ethylthiophene (CAS 83663-35-8)
- 2,4,5-Tribromo-1-(methoxymethyl)-1H-imidazole (CAS 22927-61-3)
- 1,2,4-Tribromo-1,1,2-trifluorobutane 2022-80-2 6824AD C4H4Br3F3 (CAS 2022-80-2)
- 1,1,1-Tribromo-3,3,3-trifluoropropan-2-one (CAS 431-91-4)
Recommended Standards
- 4-Chloro-1-tosyl-1H-pyrrolo[2,3-b]pyridine-2-carboxylic acid (CAS 1204809-92-6)
- NMS-859, >98% (HPLC) (CAS 1449236-96-7)
- 3-(7-(4-Chlorophenyl)-4-oxo-4H,8H-[1,2,4]triazino[3,4-b][1,3,4]thiadiazin-3-yl)propanoic acid (CAS 1049030-39-8)
- Methyl 1-(benzenesulfonyl)-6-chloro-1H-pyrrolo[2,3-b]pyridine-2-carboxylate (CAS 1630907-18-4)
- 1-(2-Mercaptoethyl)guanidine sulfate (CAS 3979-00-8)
- 3-(4-(2-(tert-Butoxy)-2-oxoethoxy)phenyl)propanoic acid (CAS 1160755-26-9)
- 1-(3-Isopropylpyridin-4-yl)ethanone (CAS 1448777-19-2)
- 5-(Naphthalen-2-yloxy)benzene-1,3-diamine (CAS 883291-49-4)
- Vanadyl(IV) sulfate hydrate (CAS 123334-20-3)
- tert-Butyl 3-(pyrimidin-2-ylamino)pyrrolidine-1-carboxylate (CAS 950649-08-8)
- 2,4-Dichlorophenylzinc iodide 0.5 M in Tetrahydrofuran (CAS 352530-42-8)
- Tiamulin impurity 23 (CAS CATO-C4X-221023)
- Ethyl 2-amino-3-chloro-5-methoxybenzoate (CAS 1251227-12-9)
- Semaglutide Impurity 130 (CAS 1188328-40-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com