1,3-Dibromo-2,4-difluorobenzene CAS 219926-41-7
| CAS No. | 219926-41-7 |
| Molecular Formula | C6H2Br2F2 |
| Molecular Weight | 271.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,3-Dibromo-2,4-difluorobenzene 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.
1,3-Dibromo-2,4-difluorobenzene (CAS 219926-41-7), molecular formula C6H2Br2F2 and molecular weight 271.88 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to fluorine/bromine substitution, an aromatic ring system, 1,3-Dibromo-2,4-difluorobenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 271.88 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H2Br2F2 |
| Molecular Weight | 271.88 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.) | 2019 |
| Halogen Content | F/Br-containing |
Related Dibromo Standards
- 1,3-Dibromo-2,5-difluorobenzene (CAS 128259-68-7)
- 2,5-Dibromo-1,3-difluorobenzene (CAS 128259-71-2)
- 1,2-Dibromo-3,5-difluorobenzene (CAS 139215-43-3)
- 1,4-Dibromo-2,3-difluorobenzene (CAS 156682-52-9)
- 2,3-Dibromo-1,4-difluorobenzene (CAS 179737-33-8)
- 1,2-Dibromo-3,4-difluorobenzene (CAS 811713-01-6)
- 1,4-Dibromo-2,5-difluorobenzene (CAS 327-51-5)
- 1,5-Dibromo-2,3-difluorobenzene (CAS 811713-09-4)
Recommended Standards
- 4-Bromo-2,6-dichloro-3-nitropyridine (CAS 1807697-58-0)
- 1,5-Dibromo-2,4-difluorobenzene (CAS 28342-75-8)
- 3-Bromo-2,4-dichloro-5-nitropyridine (CAS 850180-82-4)
- 3-Bromo-2,6-dichloro-5-nitropyridine (CAS 2091687-88-4)
- 3-(4-Nitrophenoxy)aniline hydrochloride (CAS 19157-81-4)
- Methyl 2,3,4-tri-O-acetyl-6-O-tert-butyldiphenylsilyl-a-D-glucopyranoside (CAS 790685-09-5)
- 6-Benzyl-4-chloro-1H-pyrrolo[2,3-d]pyrimidin-2-amine (CAS 651358-63-3)
- 2-(tert-Butoxy)-5-(methylamino)phenol (CAS 1243311-78-5)
- 3-(4-(Benzo[d]oxazol-2-yl)-1H-pyrazol-1-yl)tetrahydrothiophene 1,1-dioxide (CAS 321571-61-3)
- 2-(2-(Propylamino)pyridin-3-yl)pyrrolidine-1-carbaldehyde (CAS 1352496-47-9)
- 5-Phenylpyrrolidin-2-one (CAS 22050-10-8)
- N-(4,4,6-Trimethyl-2-thioxo-3,4-dihydropyrimidin-1(2H)-yl)butyramide (CAS 58553-11-0)
- Zolmitriptan Impurity 43 (CAS CATO-C4X-135143)
- Liraglutide Impurity 10 TFA Salt (CAS CATO-C4X-199210)
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