2,4-Dichloro-5-methoxyphenol CAS 18113-13-8
| CAS No. | 18113-13-8 |
| Molecular Formula | C7H6Cl2O2 |
| Molecular Weight | 193.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,4-Dichloro-5-methoxyphenol (CAS 18113-13-8) is a high-purity analytical reference standard with the molecular formula C7H6Cl2O2 and a molecular weight of 193.03 g/mol.
2,4-Dichloro-5-methoxyphenol (C7H6Cl2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, 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.
Physical & Chemical Properties
| Molecular Formula | C7H6Cl2O2 |
| Molecular Weight | 193.03 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- 2,4-Dichloro-6-(methoxymethyl)pyrimidine (CAS 1037543-27-3)
- 3,5-Dichloro-1-ethylpyrazin-2(1H)-one (CAS 1187017-35-1)
- 2,5-Dichloro-4-methoxy-6-methylpyrimidine (CAS 1192479-55-2)
- 1-(4,5-Dichloro-1H-imidazol-1-yl)propan-2-one (CAS 1219557-54-6)
- 3,5-Dichloro-6-methoxypyridin-2-amine (CAS 1261269-27-5)
- 3,5-Dichloro-4-methoxypyridin-2-amine (CAS 1261269-31-1)
- 4,5-Dichloro-6-methoxy-2-methylpyrimidine (CAS 126804-42-0)
- 3,5-Dichloro-2-(hydroxymethyl)phenol (CAS 1314922-16-1)
Recommended Standards
- 4,5-Dichloro-6-ethoxypyrimidine (CAS 1804513-48-1)
- 4-Chloro-1,5-dimethyl-1H-pyrazole-3-carbonyl chloride (CAS 189224-46-2)
- 2,5-Dichloro-3-methoxyphenol (CAS 1781571-37-6)
- 4,6-Dichloro-2-(methoxymethyl)pyrimidine (CAS 1903-92-0)
- 2-Bromo-4-(methoxymethoxy)-1-(trifluoromethoxy)benzene (CAS 1870459-44-1)
- N-(3,4-dimethoxyphenethyl)-N-(5-methyl-3-phenylisoxazol-4-yl)formamide (CAS 217317-64-1)
- 3-fluoropyridazine (CAS 157496-32-7)
- 2-(1-Chloroethyl)-1,3,4-oxadiazole (CAS 1250037-50-3)
- 2-Methyl-N-(2,2,2-trifluoroethyl)cyclohexan-1-amine (CAS 1016528-01-0)
- 5-Ethyl-7-trifluoromethyl-4,5,6,7-tetrahydro-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 878618-88-3)
- 3-Methoxypyrazin-2-amine (CAS 4774-10-1)
- n-(Bicyclo[2.2.1]hept-5-en-2-ylmethyl)-2-methylbutan-2-amine (CAS 1218381-54-4)
- 1-Hydroxypiperidine-2,6-dione (CAS 17195-27-6)
- Fibrinopeptide B (human) (CAS 36204-23-6)
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