3-Bromo-4-fluorobenzyl bromide CAS 78239-66-4
| CAS No. | 78239-66-4 |
| Molecular Formula | C7H5Br2F |
| Molecular Weight | 267.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 267.92 g/mol gives 3-Bromo-4-fluorobenzyl bromide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Bromo-4-fluorobenzyl bromide (CAS 78239-66-4) is a high-purity analytical reference standard with the molecular formula C7H5Br2F and a molecular weight of 267.92 g/mol.
Structurally, 3-Bromo-4-fluorobenzyl bromide (C7H5Br2F) contains fluorine/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 267.92 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 3-Bromo-4-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 | C7H5Br2F |
| Molecular Weight | 267.92 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.) | 1979 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- (2-Bromo-1-(bromomethyl)-3-fluorobenzene (CAS 1184918-22-6)
- 4-Bromo-3-fluorobenzyl bromide, 97% (CAS 127425-73-4)
- 2-Bromo-4-fluorobenzyl bromide, 97% (CAS 61150-57-0)
- 3-Bromo-5-fluorobenzyl Bromide (CAS 216755-57-6)
- 4-Bromo-2-fluorobenzyl Bromide (CAS 76283-09-5)
- 5-Bromo-2-fluorobenzyl Bromide (CAS 99725-12-9)
- 2-Bromo-5-fluorobenzyl Bromide (CAS 112399-50-5)
- 1-(4-Bromo-3-chlorophenyl)-2-chloroethanone (CAS 1261859-54-4)
Recommended Standards
- 3,5-DIbromo-2-fluorotoluene (CAS 85233-13-2)
- 3-Fluorobenzalbromide (CAS 455-34-5)
- 1,5-Dibromo-3-fluoro-2-methylbenzene (CAS 85233-17-6)
- 1,5-Dibromo-2-fluoro-4-methylbenzene (CAS 93765-84-5)
- 5-Iodo-N-methylpyrimidin-2-amine (CAS 16341-50-7)
- 2-Morpholinobenzimidamide (CAS 1021244-23-4)
- 3-Methoxy-4,6-dihydro-2H-thieno[3,4-c]pyrazole (CAS 180791-30-4)
- 2-Hydroxy-6-methoxybenzonitrile (CAS 71590-96-0)
- 2-(Difluoromethyl)-6-hydroxy-4-iodo-3-nitropyridine (CAS 1807161-62-1)
- 2-Cyclopropylethyl 2-[(2-cyclopropylethyl)amino]-5-fluorobenzoate (CAS 1353504-54-7)
- 1-(3-Chloro-4-methoxyphenyl)-3-isopropylurea (CAS 252058-92-7)
- 2-[2-(trifluoromethyl)benzamido]benzamide (CAS 923781-05-9)
- N-((4-Bromophenyl)carbamothioyl)pivalamide (CAS 295346-72-4)
- Palmitoyl hexapeptide-6 (CAS 891498-01-4)
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