3,5-Dichloro-2-(difluoromethoxy)phenol CAS 1803818-76-9
| CAS No. | 1803818-76-9 |
| Molecular Formula | C7H4Cl2F2O2 |
| Molecular Weight | 229.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3,5-Dichloro-2-(difluoromethoxy)phenol.
CATO supplies 3,5-Dichloro-2-(difluoromethoxy)phenol (CAS 1803818-76-9), a certified reference material (molecular formula C7H4Cl2F2O2, MW 229.01 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H4Cl2F2O2, 3,5-Dichloro-2-(difluoromethoxy)phenol contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 229.01 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C7H4Cl2F2O2 |
| Molecular Weight | 229.01 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Cl-containing |
Related Dichloro Standards
- 2,3-Dichloro-6-(difluoromethoxy)phenol (CAS 1803717-70-5)
- 2,4-Dichloro-6-(difluoromethoxy)phenol (CAS 1803791-20-9)
- 2,4-Dichloro-5-(difluoromethoxy)phenol (CAS 1803791-33-4)
- 2,3-Dichloro-5-(difluoromethoxy)phenol (CAS 1803818-68-9)
- 2,3-Dichloro-4-(difluoromethoxy)phenol (CAS 1803832-76-9)
- 3,4-Dichloro-5-(difluoromethoxy)phenol (CAS 1804516-99-1)
- 2,5-Dichloro-3-(difluoromethoxy)phenol (CAS 1804884-57-8)
- 2,6-Dichloro-4-(difluoromethoxy)phenol (CAS 1805125-63-6)
Recommended Standards
- 4-Bromo-1-methyl-3-(trifluoromethyl)-1H-pyrazole (CAS 497832-99-2)
- 2,6-Dichloro-3-(difluoromethoxy)phenol (CAS 1806301-48-3)
- 5-Bromo-1-methyl-3-(trifluoromethyl)-1H-pyrazole (CAS 524740-42-9)
- 3,6-Dichloro-2-(difluoromethoxy)phenol (CAS 1806328-93-7)
- Methyl 5-oxo-1-(piperidin-4-yl)pyrrolidine-3-carboxylate (CAS 1211594-35-2)
- 2-(7-Fluoro-3-(methoxymethoxy)-8-methylnaphthalen-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2791276-55-4)
- 1-[(pyridin-2-yl)methyl]-1h-1,2,4-triazol-3-amine (CAS 1184416-55-4)
- tert-Butyl 5-iodo-3-methyl-1H-indazole-1-carboxylate (CAS 1180526-39-9)
- 1-Bromo-4-(4-nitrophenoxy)benzene (CAS 21969-04-0)
- tert-Butyl ((3S,4R)-3-hydroxypiperidin-4-yl)carbamate (CAS 724787-35-3)
- 3-Bromo-5-(4-thiomorpholinylsulfonyl)benzoic acid (CAS 522652-13-7)
- Ethyl 2-(oxetan-3-yl)-2-oxoacetate (CAS 2386622-10-0)
- (1S,4R)-4-[(2,5-Diamino-6-chloro-4-pyrimidinyl)amino]-2-cyclopentene-1-methanol (CAS 141271-12-7)
- Insulin Degludec Impurity 15 (CAS CATO-C4X-215715)
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