4,5-Dichloro-2-fluorobenzyl bromide CAS 1804886-19-8
| CAS No. | 1804886-19-8 |
| Molecular Formula | C7H4BrCl2F |
| Molecular Weight | 257.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4,5-Dichloro-2-fluorobenzyl bromide is closely related to fluorine/chlorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4,5-Dichloro-2-fluorobenzyl bromide (CAS 1804886-19-8) is a high-purity analytical reference standard with the molecular formula C7H4BrCl2F and a molecular weight of 257.92 g/mol.
Structurally, 4,5-Dichloro-2-fluorobenzyl bromide (C7H4BrCl2F) contains fluorine/chlorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 257.92 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 4,5-Dichloro-2-fluorobenzyl bromide 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 | C7H4BrCl2F |
| Molecular Weight | 257.92 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.) | 1995 |
| Halogen Content | F/Cl/Br-containing |
Related Dichloro Standards
- 3,5-Dichloro-4-fluorobenzyl bromide (CAS 1803725-04-3)
- 2,5-Dichloro-3-fluorobenzyl bromide (CAS 1803784-30-6)
- 3,4-Dichloro-5-fluorobenzyl bromide (CAS 1803807-07-9)
- 2,4-Dichloro-3-fluorobenzyl bromide (CAS 1804514-62-2)
- 2,5-Dichloro-4-fluorobenzyl bromide (CAS 1806302-59-9)
- 2,4-Dichloro-6-fluorobenzyl bromide (CAS 1807039-84-4)
- 2,3-Dichloro-4-fluorobenzyl bromide (CAS 1807053-25-3)
- 3,4-Dichloro-2-fluorobenzyl bromide (CAS 1807053-29-7)
Recommended Standards
- 2-(Bromomethyl)-1,3-dichloro-5-fluorobenzene (CAS 1803784-34-0)
- 5-Bromo-1-chloro-2-(chloromethyl)-3-fluorobenzene (CAS 1823959-64-3)
- 3-Bromo-1,2-dichloro-5-fluoro-4-methylbenzene (CAS 1373253-12-3)
- (2-Bromo-6-(sec-butyl)pyridin-4-yl)boronic acid (CAS 2225152-29-2)
- 3-Fluoro-4-(4-methoxyphenyl)benzoic acid (CAS 1261892-86-7)
- 1-[(2-Nitrophenyl)sulfonyl]-1H-pyrrole (CAS 51144-95-7)
- 1-(4-(1H-imidazol-1-yl)phenyl)-2-bromoethan-1-one (CAS 110668-69-4)
- 4-Methyl-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylic acid (CAS 343929-13-5)
- 5-(4-Methoxyphenyl)-N-phenyl-1,3,4-thiadiazol-2-amine (CAS 74959-57-2)
- ditert-butyl (2R)-2-(methoxymethyl)piperazine-1,4-dicarboxylate (CAS 2561529-04-0)
- 2-(3,3-Difluoropiperidin-1-yl)-3-fluoropyridine 1779120-24-9 (CAS 1779120-24-9)
- 4-Azido-2-phenylmethanesulfinylbenzonitrile (CAS 496927-07-2)
- 4-Bromo-1-iododibenzo[b,d]furan (CAS 2096506-51-1)
- Peptide 437 (CAS CATO-CPTD788437)
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