2,5-Dichloro-4-(difluoromethoxy)benzoyl chloride CAS 1803789-18-5
| CAS No. | 1803789-18-5 |
| Molecular Formula | C8H3Cl3F2O2 |
| Molecular Weight | 275.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,5-Dichloro-4-(difluoromethoxy)benzoyl chloride (CAS 1803789-18-5), molecular formula C8H3Cl3F2O2 and molecular weight 275.46 g/mol, is a CATO reference standard with documented purity and traceability.
2,5-Dichloro-4-(difluoromethoxy)benzoyl chloride (C8H3Cl3F2O2) 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), 2,5-Dichloro-4-(difluoromethoxy)benzoyl 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 | C8H3Cl3F2O2 |
| Molecular Weight | 275.46 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, 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.) | 1995 |
| Halogen Content | F/Cl-containing |
Related Dichloro Standards
- 3,4-Dichloro-2-(difluoromethoxy)benzoyl chloride (CAS 1803713-42-9)
- 2,3-Dichloro-6-(difluoromethoxy)benzoyl chloride (CAS 1803789-10-7)
- 2,3-Dichloro-4-(difluoromethoxy)benzoyl chloride (CAS 1803818-01-0)
- 2,6-Dichloro-4-(difluoromethoxy)benzoyl chloride (CAS 1804883-17-7)
- 3,4-Dichloro-5-(difluoromethoxy)benzoyl chloride (CAS 1804883-23-5)
- 3,5-Dichloro-4-(difluoromethoxy)benzoyl chloride (CAS 1805124-99-5)
- 4,5-Dichloro-2-(difluoromethoxy)benzoyl chloride (CAS 1806275-92-2)
- 2,4-Dichloro-3-(difluoromethoxy)benzoyl chloride (CAS 1806349-95-0)
Recommended Standards
- 4-(((tert-Butyldimethylsilyl)oxy)methyl)-3-ethylbenzonitrile (CAS 1799741-43-7)
- 1-decyl-4-isothiocyanatobenzene 206559-54-8 4-Decylphenyl isothiocyanate (CAS 206559-54-8)
- 4-Bromo-2-chloro-6-(trifluoromethyl)pyridin-3-amine (CAS 947146-74-9)
- 4-Bromo-1-chloro-2-(trifluoromethoxy)benzene (CAS 406232-79-9)
- 1-(3-methoxypyridin-4-yl)piperazine (CAS 151140-92-0)
- 2,4-dimethyloxetane (CAS 14988-66-0)
- 2,5-Dibromo-4-nitropyridine (CAS 221241-31-2)
- Ethyl 5-(5-bromopyridin-2-yl)-3-methylisoxazole-4-carboxylate (CAS 1311280-10-0)
- Ethyl 5-(4-chlorophenoxy)-3-phenyl-1,2,4-triazine-6-carboxylate (CAS 338957-35-0)
- N-(2-bromobenzyl)-2-hydroxy-N-methylacetamide (CAS 926241-22-7)
- 2-((4-Chloropyridin-3-yl)amino)acetic acid (CAS 478361-31-8)
- 5,5'-Bi(1,10-phenanthroline) (CAS 96761-79-4)
- Methyl 2-[2-nitro-5-(trifluoromethyl)phenyl]acetate (CAS 1806337-92-7)
- Q-Peptide trifluoroacetate salt (CAS 1361235-89-3)
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