4-Fluoro-2-methoxybenzoyl chloride CAS 51671-69-3
| CAS No. | 51671-69-3 |
| Molecular Formula | C8H6ClFO2 |
| Molecular Weight | 188.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Fluoro-2-methoxybenzoyl chloride (CAS 51671-69-3), a certified reference material (molecular formula C8H6ClFO2, MW 188.58 g/mol) for analytical method development and quality control.
4-Fluoro-2-methoxybenzoyl chloride (C8H6ClFO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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.
As a certified reference material (CRM), 4-Fluoro-2-methoxybenzoyl chloride 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 | C8H6ClFO2 |
| Molecular Weight | 188.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | F/Cl-containing |
Related Fluoro Standards
- 4-Fluoro-3-methylphenyl Chloroformate (CAS 1001095-14-2)
- 3-Fluoro-2-methoxybenzoyl chloride (CAS 106428-06-2)
- 3-Fluoro-5-methoxybenzoyl chloride (CAS 1092789-19-9)
- 4-Fluoro-3-(chloromethyl)benzoic acid (CAS 1378830-30-8)
- 4-Fluoro-2-methylphenyl Chloroformate (CAS 1552201-86-1)
- 2-Fluoro-3-methoxybenzoyl chloride (CAS 850563-45-0)
- 2-Fluoro-4-methoxybenzoyl Chloride (CAS 321-24-4)
- 2-Fluoro-5-methoxybenzoyl chloride (CAS 659737-56-1)
Recommended Standards
- 4-Chloro-3-fluorophenylacetic Acid (CAS 883500-51-4)
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