Ethyl 3,5-dichloro-2-methylphenylacetate CAS 1804516-60-6
| CAS No. | 1804516-60-6 |
| Molecular Formula | C11H12Cl2O2 |
| Molecular Weight | 247.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Ethyl 3,5-dichloro-2-methylphenylacetate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 247.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Ethyl 3,5-dichloro-2-methylphenylacetate (CAS 1804516-60-6), molecular formula C11H12Cl2O2 and molecular weight 247.12 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C11H12Cl2O2 |
| Molecular Weight | 247.12 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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 | Cl-containing |
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Recommended Standards
- Ethyl 2,6-dichloro-4-methylphenylacetate (CAS 1803845-41-1)
- Ethyl 2,5-dichloro-3-methylphenylacetate (CAS 1804896-90-9)
- Ethyl 3,4-dichloro-5-methylphenylacetate (CAS 1803836-81-8)
- Ethyl 2,3-dichloro-5-methylphenylacetate (CAS 1806304-59-5)
- 1-(chloromethyl)-3-iodo-5-nitrobenzene (CAS 1261794-69-7)
- 1,4-Dimethyl-3-(o-tolyl)-1h-pyrazol-5-amine (CAS 1152654-87-9)
- 6-(Benzyl(cyclopropyl)amino)nicotinonitrile (CAS 1424339-95-6)
- tert-Butyl 3-hydroxy-4-(hydroxymethyl)pyrrolidine-1-carboxylate (CAS 147722-75-6)
- (R)-1,2,3,4-Tetrahydroquinolin-4-amine dihydrochloride (CAS 1965305-32-1)
- 8-(Methylsulfonyl)-8-azabicyclo[3.2.1]oct-2-ene (CAS 1796948-10-1)
- 2-Fluoro-4-picoline (CAS 461-87-0)
- K19 Dye (CAS 847665-45-6)
- N-(4-Acetylphenyl)-2-chloropropanamide (CAS 156369-45-8)
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
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