2,5-Dichloro-4-fluorobenzyl chloride CAS 1805127-87-0
| CAS No. | 1805127-87-0 |
| Molecular Formula | C7H4Cl3F |
| Molecular Weight | 213.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 213.46 g/mol gives 2,5-Dichloro-4-fluorobenzyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2,5-Dichloro-4-fluorobenzyl chloride (CAS 1805127-87-0) is a high-purity analytical reference standard with the molecular formula C7H4Cl3F and a molecular weight of 213.46 g/mol.
2,5-Dichloro-4-fluorobenzyl chloride (C7H4Cl3F) contains fluorine/chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H4Cl3F |
| Molecular Weight | 213.46 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-containing |
Related Dichloro Standards
- 1,5-dichloro-3-(chloromethyl)-2-fluorobenzene (CAS 1523204-39-8)
- 1,3-Dichloro-5-(chloromethyl)-2-fluorobenzene (CAS 1788077-32-6)
- 2,6-Dichloro-4-fluorobenzyl chloride (CAS 1803725-08-7)
- 3,4-Dichloro-5-fluorobenzyl chloride (CAS 1803725-13-4)
- 3,6-Dichloro-2-fluorobenzyl chloride (CAS 1803812-32-9)
- 3,4-Dichloro-2-fluorobenzyl chloride (CAS 1804886-26-7)
- 4,5-Dichloro-2-fluorobenzyl chloride (CAS 1804886-28-9)
- 2,4-Dichloro-6-fluorobenzyl chloride (CAS 1806302-63-5)
Recommended Standards
- 2,3-Dichloro-5-fluorobenzyl chloride (CAS 1806354-20-0)
- 2,5-Dichloro-3-fluorobenzyl chloride (CAS 1806354-31-3)
- 2,6-Dichloro-3-fluorobenzyl chloride (CAS 1806354-44-8)
- 2,4-Dichloro-3-fluorobenzyl chloride (CAS 1807053-37-7)
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